Home / 125,645.07-173,390.58-71,930.49

Finding the Fourth Proportional to 125,645.07, 173,390.58 and 71,930.49

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Solution

The fourth proportional to 125,645.07, 173,390.58 and 71,930.49 is: 99,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,645.07 : 173,390.58 = 71,930.49 : x
  2. Step 2: Convert to fraction form
    125,645.07/173,390.58 = 71,930.49/x
  3. Step 3: Cross multiply
    125,645.07x = 173,390.58 × 71,930.49
  4. Step 4: Simplify right side
    125,645.07x = 12,472,069,380.78
  5. Step 5: Solve for x
    x = 12,472,069,380.78/125,645.07
  6. Step 6: Final answer
    x = 99,264.30

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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.