Home / 99,675.23-137,546.82-56,649.04

Finding the Fourth Proportional to 99,675.23, 137,546.82 and 56,649.04

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Solution

The fourth proportional to 99,675.23, 137,546.82 and 56,649.04 is: 78,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,675.23 : 137,546.82 = 56,649.04 : x
  2. Step 2: Convert to fraction form
    99,675.23/137,546.82 = 56,649.04/x
  3. Step 3: Cross multiply
    99,675.23x = 137,546.82 × 56,649.04
  4. Step 4: Simplify right side
    99,675.23x = 7,791,894,964.19
  5. Step 5: Solve for x
    x = 7,791,894,964.19/99,675.23
  6. Step 6: Final answer
    x = 78,172.83

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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.