Home / 125,172.20-187,738.68-40,931.66

Finding the Fourth Proportional to 125,172.20, 187,738.68 and 40,931.66

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Solution

The fourth proportional to 125,172.20, 187,738.68 and 40,931.66 is: 61,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,172.20 : 187,738.68 = 40,931.66 : x
  2. Step 2: Convert to fraction form
    125,172.20/187,738.68 = 40,931.66/x
  3. Step 3: Cross multiply
    125,172.20x = 187,738.68 × 40,931.66
  4. Step 4: Simplify right side
    125,172.20x = 7,684,455,818.61
  5. Step 5: Solve for x
    x = 7,684,455,818.61/125,172.20
  6. Step 6: Final answer
    x = 61,391.07

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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.