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Finding the Fourth Proportional to 172,937.50, 238,657.40 and 97,486

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Solution

The fourth proportional to 172,937.50, 238,657.40 and 97,486 is: 134,532.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,937.50 : 238,657.40 = 97,486 : x
  2. Step 2: Convert to fraction form
    172,937.50/238,657.40 = 97,486/x
  3. Step 3: Cross multiply
    172,937.50x = 238,657.40 × 97,486
  4. Step 4: Simplify right side
    172,937.50x = 23,265,754,808.97
  5. Step 5: Solve for x
    x = 23,265,754,808.97/172,937.50
  6. Step 6: Final answer
    x = 134,532.73

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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.