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Finding the Fourth Proportional to 131,432.70, 197,149.05 and 89,960.70

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Solution

The fourth proportional to 131,432.70, 197,149.05 and 89,960.70 is: 134,941.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,432.70 : 197,149.05 = 89,960.70 : x
  2. Step 2: Convert to fraction form
    131,432.70/197,149.05 = 89,960.70/x
  3. Step 3: Cross multiply
    131,432.70x = 197,149.05 × 89,960.70
  4. Step 4: Simplify right side
    131,432.70x = 17,735,666,542.34
  5. Step 5: Solve for x
    x = 17,735,666,542.34/131,432.70
  6. Step 6: Final answer
    x = 134,941.05

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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.