Home / 125,079.12-187,619.22-31,584.87

Finding the Fourth Proportional to 125,079.12, 187,619.22 and 31,584.87

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Solution

The fourth proportional to 125,079.12, 187,619.22 and 31,584.87 is: 47,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,079.12 : 187,619.22 = 31,584.87 : x
  2. Step 2: Convert to fraction form
    125,079.12/187,619.22 = 31,584.87/x
  3. Step 3: Cross multiply
    125,079.12x = 187,619.22 × 31,584.87
  4. Step 4: Simplify right side
    125,079.12x = 5,925,928,673.20
  5. Step 5: Solve for x
    x = 5,925,928,673.20/125,079.12
  6. Step 6: Final answer
    x = 47,377.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.