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Finding the Fourth Proportional to 90,088.57, 135,154.88 and 63,486.45

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Solution

The fourth proportional to 90,088.57, 135,154.88 and 63,486.45 is: 95,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,088.57 : 135,154.88 = 63,486.45 : x
  2. Step 2: Convert to fraction form
    90,088.57/135,154.88 = 63,486.45/x
  3. Step 3: Cross multiply
    90,088.57x = 135,154.88 × 63,486.45
  4. Step 4: Simplify right side
    90,088.57x = 8,580,503,531.38
  5. Step 5: Solve for x
    x = 8,580,503,531.38/90,088.57
  6. Step 6: Final answer
    x = 95,245.20

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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.