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Finding the Fourth Proportional to 131,254.92, 196,901.70 and 42,478.92

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Solution

The fourth proportional to 131,254.92, 196,901.70 and 42,478.92 is: 63,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,254.92 : 196,901.70 = 42,478.92 : x
  2. Step 2: Convert to fraction form
    131,254.92/196,901.70 = 42,478.92/x
  3. Step 3: Cross multiply
    131,254.92x = 196,901.70 × 42,478.92
  4. Step 4: Simplify right side
    131,254.92x = 8,364,171,562.16
  5. Step 5: Solve for x
    x = 8,364,171,562.16/131,254.92
  6. Step 6: Final answer
    x = 63,724.63

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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.