Home / 154,001.42-212,525.44-90,385.10

Finding the Fourth Proportional to 154,001.42, 212,525.44 and 90,385.10

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Solution

The fourth proportional to 154,001.42, 212,525.44 and 90,385.10 is: 124,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,001.42 : 212,525.44 = 90,385.10 : x
  2. Step 2: Convert to fraction form
    154,001.42/212,525.44 = 90,385.10/x
  3. Step 3: Cross multiply
    154,001.42x = 212,525.44 × 90,385.10
  4. Step 4: Simplify right side
    154,001.42x = 19,209,131,858.35
  5. Step 5: Solve for x
    x = 19,209,131,858.35/154,001.42
  6. Step 6: Final answer
    x = 124,733.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.