Home / 121,273.60-181,996.80-51,203.20

Finding the Fourth Proportional to 121,273.60, 181,996.80 and 51,203.20

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Solution

The fourth proportional to 121,273.60, 181,996.80 and 51,203.20 is: 76,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,273.60 : 181,996.80 = 51,203.20 : x
  2. Step 2: Convert to fraction form
    121,273.60/181,996.80 = 51,203.20/x
  3. Step 3: Cross multiply
    121,273.60x = 181,996.80 × 51,203.20
  4. Step 4: Simplify right side
    121,273.60x = 9,318,818,549.76
  5. Step 5: Solve for x
    x = 9,318,818,549.76/121,273.60
  6. Step 6: Final answer
    x = 76,841.28

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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.