Home / 135,168,051.20-202,752,076.80-81,376,102.40

Finding the Fourth Proportional to 135,168,051.20, 202,752,076.80 and 81,376,102.40

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Solution

The fourth proportional to 135,168,051.20, 202,752,076.80 and 81,376,102.40 is: 122,064,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,168,051.20 : 202,752,076.80 = 81,376,102.40 : x
  2. Step 2: Convert to fraction form
    135,168,051.20/202,752,076.80 = 81,376,102.40/x
  3. Step 3: Cross multiply
    135,168,051.20x = 202,752,076.80 × 81,376,102.40
  4. Step 4: Simplify right side
    135,168,051.20x = 16,499,173,763,489,466
  5. Step 5: Solve for x
    x = 16,499,173,763,489,466/135,168,051.20
  6. Step 6: Final answer
    x = 122,064,153.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.