Home / 381,831.67-572,748.87-129,114.25

Finding the Fourth Proportional to 381,831.67, 572,748.87 and 129,114.25

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Solution

The fourth proportional to 381,831.67, 572,748.87 and 129,114.25 is: 193,671.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,831.67 : 572,748.87 = 129,114.25 : x
  2. Step 2: Convert to fraction form
    381,831.67/572,748.87 = 129,114.25/x
  3. Step 3: Cross multiply
    381,831.67x = 572,748.87 × 129,114.25
  4. Step 4: Simplify right side
    381,831.67x = 73,950,043,062.42
  5. Step 5: Solve for x
    x = 73,950,043,062.42/381,831.67
  6. Step 6: Final answer
    x = 193,671.84

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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.