Home / 125,352.11-172,988.25-76,929.76

Finding the Fourth Proportional to 125,352.11, 172,988.25 and 76,929.76

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Solution

The fourth proportional to 125,352.11, 172,988.25 and 76,929.76 is: 106,164.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,352.11 : 172,988.25 = 76,929.76 : x
  2. Step 2: Convert to fraction form
    125,352.11/172,988.25 = 76,929.76/x
  3. Step 3: Cross multiply
    125,352.11x = 172,988.25 × 76,929.76
  4. Step 4: Simplify right side
    125,352.11x = 13,307,944,363.00
  5. Step 5: Solve for x
    x = 13,307,944,363.00/125,352.11
  6. Step 6: Final answer
    x = 106,164.51

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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.