Home / 125,138.22-187,705.77-30,369.20

Finding the Fourth Proportional to 125,138.22, 187,705.77 and 30,369.20

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Solution

The fourth proportional to 125,138.22, 187,705.77 and 30,369.20 is: 45,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,138.22 : 187,705.77 = 30,369.20 : x
  2. Step 2: Convert to fraction form
    125,138.22/187,705.77 = 30,369.20/x
  3. Step 3: Cross multiply
    125,138.22x = 187,705.77 × 30,369.20
  4. Step 4: Simplify right side
    125,138.22x = 5,700,473,131.76
  5. Step 5: Solve for x
    x = 5,700,473,131.76/125,138.22
  6. Step 6: Final answer
    x = 45,553.41

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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.