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Finding the Fourth Proportional to 104,688, 157,073.96 and 38,132.72

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Solution

The fourth proportional to 104,688, 157,073.96 and 38,132.72 is: 57,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,688 : 157,073.96 = 38,132.72 : x
  2. Step 2: Convert to fraction form
    104,688/157,073.96 = 38,132.72/x
  3. Step 3: Cross multiply
    104,688x = 157,073.96 × 38,132.72
  4. Step 4: Simplify right side
    104,688x = 5,989,657,335.97
  5. Step 5: Solve for x
    x = 5,989,657,335.97/104,688
  6. Step 6: Final answer
    x = 57,214.36

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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.