Home / 125,827.20-173,648.70-72,121.14

Finding the Fourth Proportional to 125,827.20, 173,648.70 and 72,121.14

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Solution

The fourth proportional to 125,827.20, 173,648.70 and 72,121.14 is: 99,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,827.20 : 173,648.70 = 72,121.14 : x
  2. Step 2: Convert to fraction form
    125,827.20/173,648.70 = 72,121.14/x
  3. Step 3: Cross multiply
    125,827.20x = 173,648.70 × 72,121.14
  4. Step 4: Simplify right side
    125,827.20x = 12,523,742,203.52
  5. Step 5: Solve for x
    x = 12,523,742,203.52/125,827.20
  6. Step 6: Final answer
    x = 99,531.28

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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.