Home / 125,836.16-173,595.84-81,138.56

Finding the Fourth Proportional to 125,836.16, 173,595.84 and 81,138.56

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Solution

The fourth proportional to 125,836.16, 173,595.84 and 81,138.56 is: 111,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,836.16 : 173,595.84 = 81,138.56 : x
  2. Step 2: Convert to fraction form
    125,836.16/173,595.84 = 81,138.56/x
  3. Step 3: Cross multiply
    125,836.16x = 173,595.84 × 81,138.56
  4. Step 4: Simplify right side
    125,836.16x = 14,085,316,479.59
  5. Step 5: Solve for x
    x = 14,085,316,479.59/125,836.16
  6. Step 6: Final answer
    x = 111,933.78

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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.