Home / 157,419.40-236,129.10-101,432.20

Finding the Fourth Proportional to 157,419.40, 236,129.10 and 101,432.20

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Solution

The fourth proportional to 157,419.40, 236,129.10 and 101,432.20 is: 152,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,419.40 : 236,129.10 = 101,432.20 : x
  2. Step 2: Convert to fraction form
    157,419.40/236,129.10 = 101,432.20/x
  3. Step 3: Cross multiply
    157,419.40x = 236,129.10 × 101,432.20
  4. Step 4: Simplify right side
    157,419.40x = 23,951,094,097.02
  5. Step 5: Solve for x
    x = 23,951,094,097.02/157,419.40
  6. Step 6: Final answer
    x = 152,148.30

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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.