Home / 203,428.48-305,101.02-77,025.12

Finding the Fourth Proportional to 203,428.48, 305,101.02 and 77,025.12

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Solution

The fourth proportional to 203,428.48, 305,101.02 and 77,025.12 is: 115,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,428.48 : 305,101.02 = 77,025.12 : x
  2. Step 2: Convert to fraction form
    203,428.48/305,101.02 = 77,025.12/x
  3. Step 3: Cross multiply
    203,428.48x = 305,101.02 × 77,025.12
  4. Step 4: Simplify right side
    203,428.48x = 23,500,442,677.62
  5. Step 5: Solve for x
    x = 23,500,442,677.62/203,428.48
  6. Step 6: Final answer
    x = 115,521.89

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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.