Home / 220,557.60-304,225.92-129,837.06

Finding the Fourth Proportional to 220,557.60, 304,225.92 and 129,837.06

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Solution

The fourth proportional to 220,557.60, 304,225.92 and 129,837.06 is: 179,090.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,557.60 : 304,225.92 = 129,837.06 : x
  2. Step 2: Convert to fraction form
    220,557.60/304,225.92 = 129,837.06/x
  3. Step 3: Cross multiply
    220,557.60x = 304,225.92 × 129,837.06
  4. Step 4: Simplify right side
    220,557.60x = 39,499,799,028.60
  5. Step 5: Solve for x
    x = 39,499,799,028.60/220,557.60
  6. Step 6: Final answer
    x = 179,090.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.