Home / 120,731.60-181,097.40-31,998.80

Finding the Fourth Proportional to 120,731.60, 181,097.40 and 31,998.80

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Solution

The fourth proportional to 120,731.60, 181,097.40 and 31,998.80 is: 47,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,731.60 : 181,097.40 = 31,998.80 : x
  2. Step 2: Convert to fraction form
    120,731.60/181,097.40 = 31,998.80/x
  3. Step 3: Cross multiply
    120,731.60x = 181,097.40 × 31,998.80
  4. Step 4: Simplify right side
    120,731.60x = 5,794,899,483.12
  5. Step 5: Solve for x
    x = 5,794,899,483.12/120,731.60
  6. Step 6: Final answer
    x = 47,998.20

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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.