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Finding the Fourth Proportional to 109,957, 151,740.70 and 62,209.32

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Solution

The fourth proportional to 109,957, 151,740.70 and 62,209.32 is: 85,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,957 : 151,740.70 = 62,209.32 : x
  2. Step 2: Convert to fraction form
    109,957/151,740.70 = 62,209.32/x
  3. Step 3: Cross multiply
    109,957x = 151,740.70 × 62,209.32
  4. Step 4: Simplify right side
    109,957x = 9,439,685,763.32
  5. Step 5: Solve for x
    x = 9,439,685,763.32/109,957
  6. Step 6: Final answer
    x = 85,848.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.