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Finding the Fourth Proportional to 87,446.40, 131,169.60 and 69,950.40

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Solution

The fourth proportional to 87,446.40, 131,169.60 and 69,950.40 is: 104,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,446.40 : 131,169.60 = 69,950.40 : x
  2. Step 2: Convert to fraction form
    87,446.40/131,169.60 = 69,950.40/x
  3. Step 3: Cross multiply
    87,446.40x = 131,169.60 × 69,950.40
  4. Step 4: Simplify right side
    87,446.40x = 9,175,365,987.84
  5. Step 5: Solve for x
    x = 9,175,365,987.84/87,446.40
  6. Step 6: Final answer
    x = 104,925.60

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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.