Home / 125,516.18-173,212.62-68,931.20

Finding the Fourth Proportional to 125,516.18, 173,212.62 and 68,931.20

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Solution

The fourth proportional to 125,516.18, 173,212.62 and 68,931.20 is: 95,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,516.18 : 173,212.62 = 68,931.20 : x
  2. Step 2: Convert to fraction form
    125,516.18/173,212.62 = 68,931.20/x
  3. Step 3: Cross multiply
    125,516.18x = 173,212.62 × 68,931.20
  4. Step 4: Simplify right side
    125,516.18x = 11,939,753,751.74
  5. Step 5: Solve for x
    x = 11,939,753,751.74/125,516.18
  6. Step 6: Final answer
    x = 95,125.22

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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.