Home / 120,079.27-180,119.04-31,332.70

Finding the Fourth Proportional to 120,079.27, 180,119.04 and 31,332.70

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Solution

The fourth proportional to 120,079.27, 180,119.04 and 31,332.70 is: 46,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,079.27 : 180,119.04 = 31,332.70 : x
  2. Step 2: Convert to fraction form
    120,079.27/180,119.04 = 31,332.70/x
  3. Step 3: Cross multiply
    120,079.27x = 180,119.04 × 31,332.70
  4. Step 4: Simplify right side
    120,079.27x = 5,643,615,844.61
  5. Step 5: Solve for x
    x = 5,643,615,844.61/120,079.27
  6. Step 6: Final answer
    x = 46,999.09

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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.