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Finding the Fourth Proportional to 118,601, 177,913.92 and 38,645.18

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Solution

The fourth proportional to 118,601, 177,913.92 and 38,645.18 is: 57,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,601 : 177,913.92 = 38,645.18 : x
  2. Step 2: Convert to fraction form
    118,601/177,913.92 = 38,645.18/x
  3. Step 3: Cross multiply
    118,601x = 177,913.92 × 38,645.18
  4. Step 4: Simplify right side
    118,601x = 6,875,515,462.91
  5. Step 5: Solve for x
    x = 6,875,515,462.91/118,601
  6. Step 6: Final answer
    x = 57,971.82

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1.5x scale

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.