Home / 102,872.13-141,962.83-57,549.89

Finding the Fourth Proportional to 102,872.13, 141,962.83 and 57,549.89

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Solution

The fourth proportional to 102,872.13, 141,962.83 and 57,549.89 is: 79,418.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,872.13 : 141,962.83 = 57,549.89 : x
  2. Step 2: Convert to fraction form
    102,872.13/141,962.83 = 57,549.89/x
  3. Step 3: Cross multiply
    102,872.13x = 141,962.83 × 57,549.89
  4. Step 4: Simplify right side
    102,872.13x = 8,169,945,461.62
  5. Step 5: Solve for x
    x = 8,169,945,461.62/102,872.13
  6. Step 6: Final answer
    x = 79,418.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.