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Finding the Fourth Proportional to 90,680.75, 136,020.95 and 24,120.95

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Solution

The fourth proportional to 90,680.75, 136,020.95 and 24,120.95 is: 36,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,680.75 : 136,020.95 = 24,120.95 : x
  2. Step 2: Convert to fraction form
    90,680.75/136,020.95 = 24,120.95/x
  3. Step 3: Cross multiply
    90,680.75x = 136,020.95 × 24,120.95
  4. Step 4: Simplify right side
    90,680.75x = 3,280,953,733.19
  5. Step 5: Solve for x
    x = 3,280,953,733.19/90,680.75
  6. Step 6: Final answer
    x = 36,181.37

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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.