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Finding the Fourth Proportional to 141,752.88, 212,522.42 and 85,579.65

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Solution

The fourth proportional to 141,752.88, 212,522.42 and 85,579.65 is: 128,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,752.88 : 212,522.42 = 85,579.65 : x
  2. Step 2: Convert to fraction form
    141,752.88/212,522.42 = 85,579.65/x
  3. Step 3: Cross multiply
    141,752.88x = 212,522.42 × 85,579.65
  4. Step 4: Simplify right side
    141,752.88x = 18,187,594,534.70
  5. Step 5: Solve for x
    x = 18,187,594,534.70/141,752.88
  6. Step 6: Final answer
    x = 128,304.94

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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.