Home / 125,658.81-173,360.07-71,915.13

Finding the Fourth Proportional to 125,658.81, 173,360.07 and 71,915.13

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Solution

The fourth proportional to 125,658.81, 173,360.07 and 71,915.13 is: 99,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,658.81 : 173,360.07 = 71,915.13 : x
  2. Step 2: Convert to fraction form
    125,658.81/173,360.07 = 71,915.13/x
  3. Step 3: Cross multiply
    125,658.81x = 173,360.07 × 71,915.13
  4. Step 4: Simplify right side
    125,658.81x = 12,467,211,970.86
  5. Step 5: Solve for x
    x = 12,467,211,970.86/125,658.81
  6. Step 6: Final answer
    x = 99,214.79

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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.