Home / 125,249.07-187,870.88-30,479.68

Finding the Fourth Proportional to 125,249.07, 187,870.88 and 30,479.68

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Solution

The fourth proportional to 125,249.07, 187,870.88 and 30,479.68 is: 45,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,249.07 : 187,870.88 = 30,479.68 : x
  2. Step 2: Convert to fraction form
    125,249.07/187,870.88 = 30,479.68/x
  3. Step 3: Cross multiply
    125,249.07x = 187,870.88 × 30,479.68
  4. Step 4: Simplify right side
    125,249.07x = 5,726,244,151.32
  5. Step 5: Solve for x
    x = 5,726,244,151.32/125,249.07
  6. Step 6: Final answer
    x = 45,718.85

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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.