Home / 152,987.20-229,529.40-68,714.80

Finding the Fourth Proportional to 152,987.20, 229,529.40 and 68,714.80

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Solution

The fourth proportional to 152,987.20, 229,529.40 and 68,714.80 is: 103,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,987.20 : 229,529.40 = 68,714.80 : x
  2. Step 2: Convert to fraction form
    152,987.20/229,529.40 = 68,714.80/x
  3. Step 3: Cross multiply
    152,987.20x = 229,529.40 × 68,714.80
  4. Step 4: Simplify right side
    152,987.20x = 15,772,066,815.12
  5. Step 5: Solve for x
    x = 15,772,066,815.12/152,987.20
  6. Step 6: Final answer
    x = 103,094.03

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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.