Home / 121,268.30-181,902.45-102,022.70

Finding the Fourth Proportional to 121,268.30, 181,902.45 and 102,022.70

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Solution

The fourth proportional to 121,268.30, 181,902.45 and 102,022.70 is: 153,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,268.30 : 181,902.45 = 102,022.70 : x
  2. Step 2: Convert to fraction form
    121,268.30/181,902.45 = 102,022.70/x
  3. Step 3: Cross multiply
    121,268.30x = 181,902.45 × 102,022.70
  4. Step 4: Simplify right side
    121,268.30x = 18,558,179,085.62
  5. Step 5: Solve for x
    x = 18,558,179,085.62/121,268.30
  6. Step 6: Final answer
    x = 153,034.05

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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.