Home / 125,813.25-173,632.28-72,103.25

Finding the Fourth Proportional to 125,813.25, 173,632.28 and 72,103.25

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Solution

The fourth proportional to 125,813.25, 173,632.28 and 72,103.25 is: 99,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,813.25 : 173,632.28 = 72,103.25 : x
  2. Step 2: Convert to fraction form
    125,813.25/173,632.28 = 72,103.25/x
  3. Step 3: Cross multiply
    125,813.25x = 173,632.28 × 72,103.25
  4. Step 4: Simplify right side
    125,813.25x = 12,519,451,766.47
  5. Step 5: Solve for x
    x = 12,519,451,766.47/125,813.25
  6. Step 6: Final answer
    x = 99,508.21

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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.