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Finding the Fourth Proportional to 157,146.71, 235,720.06 and 38,820.29

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Solution

The fourth proportional to 157,146.71, 235,720.06 and 38,820.29 is: 58,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,146.71 : 235,720.06 = 38,820.29 : x
  2. Step 2: Convert to fraction form
    157,146.71/235,720.06 = 38,820.29/x
  3. Step 3: Cross multiply
    157,146.71x = 235,720.06 × 38,820.29
  4. Step 4: Simplify right side
    157,146.71x = 9,150,719,812.37
  5. Step 5: Solve for x
    x = 9,150,719,812.37/157,146.71
  6. Step 6: Final answer
    x = 58,230.43

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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.