Home / 123,077.60-185,001.76-81,226.60

Finding the Fourth Proportional to 123,077.60, 185,001.76 and 81,226.60

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Solution

The fourth proportional to 123,077.60, 185,001.76 and 81,226.60 is: 122,094.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,077.60 : 185,001.76 = 81,226.60 : x
  2. Step 2: Convert to fraction form
    123,077.60/185,001.76 = 81,226.60/x
  3. Step 3: Cross multiply
    123,077.60x = 185,001.76 × 81,226.60
  4. Step 4: Simplify right side
    123,077.60x = 15,027,063,958.82
  5. Step 5: Solve for x
    x = 15,027,063,958.82/123,077.60
  6. Step 6: Final answer
    x = 122,094.22

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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.