Home / 120,946.20-181,332.90-54,331.80

Finding the Fourth Proportional to 120,946.20, 181,332.90 and 54,331.80

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Solution

The fourth proportional to 120,946.20, 181,332.90 and 54,331.80 is: 81,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,946.20 : 181,332.90 = 54,331.80 : x
  2. Step 2: Convert to fraction form
    120,946.20/181,332.90 = 54,331.80/x
  3. Step 3: Cross multiply
    120,946.20x = 181,332.90 × 54,331.80
  4. Step 4: Simplify right side
    120,946.20x = 9,852,142,856.22
  5. Step 5: Solve for x
    x = 9,852,142,856.22/120,946.20
  6. Step 6: Final answer
    x = 81,458.89

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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.