Home / 125,034.90-172,561.89-79,714.50

Finding the Fourth Proportional to 125,034.90, 172,561.89 and 79,714.50

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Solution

The fourth proportional to 125,034.90, 172,561.89 and 79,714.50 is: 110,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,034.90 : 172,561.89 = 79,714.50 : x
  2. Step 2: Convert to fraction form
    125,034.90/172,561.89 = 79,714.50/x
  3. Step 3: Cross multiply
    125,034.90x = 172,561.89 × 79,714.50
  4. Step 4: Simplify right side
    125,034.90x = 13,755,684,780.41
  5. Step 5: Solve for x
    x = 13,755,684,780.41/125,034.90
  6. Step 6: Final answer
    x = 110,014.76

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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.