Home / 125,008.62-172,516.02-68,419.98

Finding the Fourth Proportional to 125,008.62, 172,516.02 and 68,419.98

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Solution

The fourth proportional to 125,008.62, 172,516.02 and 68,419.98 is: 94,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,008.62 : 172,516.02 = 68,419.98 : x
  2. Step 2: Convert to fraction form
    125,008.62/172,516.02 = 68,419.98/x
  3. Step 3: Cross multiply
    125,008.62x = 172,516.02 × 68,419.98
  4. Step 4: Simplify right side
    125,008.62x = 11,803,542,638.08
  5. Step 5: Solve for x
    x = 11,803,542,638.08/125,008.62
  6. Step 6: Final answer
    x = 94,421.83

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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.