Home / 125,238.16-187,857.10-30,467.76

Finding the Fourth Proportional to 125,238.16, 187,857.10 and 30,467.76

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Solution

The fourth proportional to 125,238.16, 187,857.10 and 30,467.76 is: 45,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,238.16 : 187,857.10 = 30,467.76 : x
  2. Step 2: Convert to fraction form
    125,238.16/187,857.10 = 30,467.76/x
  3. Step 3: Cross multiply
    125,238.16x = 187,857.10 × 30,467.76
  4. Step 4: Simplify right side
    125,238.16x = 5,723,585,037.10
  5. Step 5: Solve for x
    x = 5,723,585,037.10/125,238.16
  6. Step 6: Final answer
    x = 45,701.61

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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.