Home / 125,221.40-187,832.10-111,443.30

Finding the Fourth Proportional to 125,221.40, 187,832.10 and 111,443.30

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Solution

The fourth proportional to 125,221.40, 187,832.10 and 111,443.30 is: 167,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,221.40 : 187,832.10 = 111,443.30 : x
  2. Step 2: Convert to fraction form
    125,221.40/187,832.10 = 111,443.30/x
  3. Step 3: Cross multiply
    125,221.40x = 187,832.10 × 111,443.30
  4. Step 4: Simplify right side
    125,221.40x = 20,932,629,069.93
  5. Step 5: Solve for x
    x = 20,932,629,069.93/125,221.40
  6. Step 6: Final answer
    x = 167,164.95

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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.