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Finding the Fourth Proportional to 118,304.47, 177,484.95 and 39,419.38

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Solution

The fourth proportional to 118,304.47, 177,484.95 and 39,419.38 is: 59,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.47 : 177,484.95 = 39,419.38 : x
  2. Step 2: Convert to fraction form
    118,304.47/177,484.95 = 39,419.38/x
  3. Step 3: Cross multiply
    118,304.47x = 177,484.95 × 39,419.38
  4. Step 4: Simplify right side
    118,304.47x = 6,996,346,688.33
  5. Step 5: Solve for x
    x = 6,996,346,688.33/118,304.47
  6. Step 6: Final answer
    x = 59,138.48

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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.