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Finding the Fourth Proportional to 141,073.66, 211,669.84 and 87,810.18

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Solution

The fourth proportional to 141,073.66, 211,669.84 and 87,810.18 is: 131,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,073.66 : 211,669.84 = 87,810.18 : x
  2. Step 2: Convert to fraction form
    141,073.66/211,669.84 = 87,810.18/x
  3. Step 3: Cross multiply
    141,073.66x = 211,669.84 × 87,810.18
  4. Step 4: Simplify right side
    141,073.66x = 18,586,766,750.97
  5. Step 5: Solve for x
    x = 18,586,766,750.97/141,073.66
  6. Step 6: Final answer
    x = 131,752.21

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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.