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Finding the Fourth Proportional to 131,732.55, 197,598.02 and 42,986.12

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Solution

The fourth proportional to 131,732.55, 197,598.02 and 42,986.12 is: 64,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,732.55 : 197,598.02 = 42,986.12 : x
  2. Step 2: Convert to fraction form
    131,732.55/197,598.02 = 42,986.12/x
  3. Step 3: Cross multiply
    131,732.55x = 197,598.02 × 42,986.12
  4. Step 4: Simplify right side
    131,732.55x = 8,493,970,996.56
  5. Step 5: Solve for x
    x = 8,493,970,996.56/131,732.55
  6. Step 6: Final answer
    x = 64,478.91

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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.