Home / 120,845.40-181,332.90-50,731.80

Finding the Fourth Proportional to 120,845.40, 181,332.90 and 50,731.80

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Solution

The fourth proportional to 120,845.40, 181,332.90 and 50,731.80 is: 76,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,845.40 : 181,332.90 = 50,731.80 : x
  2. Step 2: Convert to fraction form
    120,845.40/181,332.90 = 50,731.80/x
  3. Step 3: Cross multiply
    120,845.40x = 181,332.90 × 50,731.80
  4. Step 4: Simplify right side
    120,845.40x = 9,199,344,416.22
  5. Step 5: Solve for x
    x = 9,199,344,416.22/120,845.40
  6. Step 6: Final answer
    x = 76,124.90

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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.