Home / 125,280.72-172,889.64-68,691.42

Finding the Fourth Proportional to 125,280.72, 172,889.64 and 68,691.42

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Solution

The fourth proportional to 125,280.72, 172,889.64 and 68,691.42 is: 94,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280.72 : 172,889.64 = 68,691.42 : x
  2. Step 2: Convert to fraction form
    125,280.72/172,889.64 = 68,691.42/x
  3. Step 3: Cross multiply
    125,280.72x = 172,889.64 × 68,691.42
  4. Step 4: Simplify right side
    125,280.72x = 11,876,034,874.89
  5. Step 5: Solve for x
    x = 11,876,034,874.89/125,280.72
  6. Step 6: Final answer
    x = 94,795.39

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1.5x scale

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.