Home / 121,135.60-181,444.20-108,002.80

Finding the Fourth Proportional to 121,135.60, 181,444.20 and 108,002.80

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Solution

The fourth proportional to 121,135.60, 181,444.20 and 108,002.80 is: 161,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,135.60 : 181,444.20 = 108,002.80 : x
  2. Step 2: Convert to fraction form
    121,135.60/181,444.20 = 108,002.80/x
  3. Step 3: Cross multiply
    121,135.60x = 181,444.20 × 108,002.80
  4. Step 4: Simplify right side
    121,135.60x = 19,596,481,643.76
  5. Step 5: Solve for x
    x = 19,596,481,643.76/121,135.60
  6. Step 6: Final answer
    x = 161,773.10

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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.