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Finding the Fourth Proportional to 132,692.10, 199,038.15 and 90,701.70

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Solution

The fourth proportional to 132,692.10, 199,038.15 and 90,701.70 is: 136,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,692.10 : 199,038.15 = 90,701.70 : x
  2. Step 2: Convert to fraction form
    132,692.10/199,038.15 = 90,701.70/x
  3. Step 3: Cross multiply
    132,692.10x = 199,038.15 × 90,701.70
  4. Step 4: Simplify right side
    132,692.10x = 18,053,098,569.86
  5. Step 5: Solve for x
    x = 18,053,098,569.86/132,692.10
  6. Step 6: Final answer
    x = 136,052.55

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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.