Home / 125,311.39-172,929.95-68,723.17

Finding the Fourth Proportional to 125,311.39, 172,929.95 and 68,723.17

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Solution

The fourth proportional to 125,311.39, 172,929.95 and 68,723.17 is: 94,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,311.39 : 172,929.95 = 68,723.17 : x
  2. Step 2: Convert to fraction form
    125,311.39/172,929.95 = 68,723.17/x
  3. Step 3: Cross multiply
    125,311.39x = 172,929.95 × 68,723.17
  4. Step 4: Simplify right side
    125,311.39x = 11,884,294,351.94
  5. Step 5: Solve for x
    x = 11,884,294,351.94/125,311.39
  6. Step 6: Final answer
    x = 94,838.10

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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.