Home / 121,140.90-181,719.45-41,177.70

Finding the Fourth Proportional to 121,140.90, 181,719.45 and 41,177.70

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Solution

The fourth proportional to 121,140.90, 181,719.45 and 41,177.70 is: 61,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,140.90 : 181,719.45 = 41,177.70 : x
  2. Step 2: Convert to fraction form
    121,140.90/181,719.45 = 41,177.70/x
  3. Step 3: Cross multiply
    121,140.90x = 181,719.45 × 41,177.70
  4. Step 4: Simplify right side
    121,140.90x = 7,482,788,996.27
  5. Step 5: Solve for x
    x = 7,482,788,996.27/121,140.90
  6. Step 6: Final answer
    x = 61,769.30

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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.