Home / 125,691.84-173,435.04-71,964

Finding the Fourth Proportional to 125,691.84, 173,435.04 and 71,964

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Solution

The fourth proportional to 125,691.84, 173,435.04 and 71,964 is: 99,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,691.84 : 173,435.04 = 71,964 : x
  2. Step 2: Convert to fraction form
    125,691.84/173,435.04 = 71,964/x
  3. Step 3: Cross multiply
    125,691.84x = 173,435.04 × 71,964
  4. Step 4: Simplify right side
    125,691.84x = 12,481,079,218.56
  5. Step 5: Solve for x
    x = 12,481,079,218.56/125,691.84
  6. Step 6: Final answer
    x = 99,299.04

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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.