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Finding the Fourth Proportional to 138,365.77, 207,419.04 and 75,093.04

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Solution

The fourth proportional to 138,365.77, 207,419.04 and 75,093.04 is: 112,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,365.77 : 207,419.04 = 75,093.04 : x
  2. Step 2: Convert to fraction form
    138,365.77/207,419.04 = 75,093.04/x
  3. Step 3: Cross multiply
    138,365.77x = 207,419.04 × 75,093.04
  4. Step 4: Simplify right side
    138,365.77x = 15,575,726,267.48
  5. Step 5: Solve for x
    x = 15,575,726,267.48/138,365.77
  6. Step 6: Final answer
    x = 112,569.22

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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.