Home / 125,311.64-172,930.29-68,723.42

Finding the Fourth Proportional to 125,311.64, 172,930.29 and 68,723.42

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Solution

The fourth proportional to 125,311.64, 172,930.29 and 68,723.42 is: 94,838.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,311.64 : 172,930.29 = 68,723.42 : x
  2. Step 2: Convert to fraction form
    125,311.64/172,930.29 = 68,723.42/x
  3. Step 3: Cross multiply
    125,311.64x = 172,930.29 × 68,723.42
  4. Step 4: Simplify right side
    125,311.64x = 11,884,360,950.39
  5. Step 5: Solve for x
    x = 11,884,360,950.39/125,311.64
  6. Step 6: Final answer
    x = 94,838.44

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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.