Home / 151,913.92-209,553.60-91,442.56

Finding the Fourth Proportional to 151,913.92, 209,553.60 and 91,442.56

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Solution

The fourth proportional to 151,913.92, 209,553.60 and 91,442.56 is: 126,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,913.92 : 209,553.60 = 91,442.56 : x
  2. Step 2: Convert to fraction form
    151,913.92/209,553.60 = 91,442.56/x
  3. Step 3: Cross multiply
    151,913.92x = 209,553.60 × 91,442.56
  4. Step 4: Simplify right side
    151,913.92x = 19,162,117,641.22
  5. Step 5: Solve for x
    x = 19,162,117,641.22/151,913.92
  6. Step 6: Final answer
    x = 126,138.00

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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.