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Finding the Fourth Proportional to 115,501.66, 159,394.90 and 67,789.42

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Solution

The fourth proportional to 115,501.66, 159,394.90 and 67,789.42 is: 93,550.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,501.66 : 159,394.90 = 67,789.42 : x
  2. Step 2: Convert to fraction form
    115,501.66/159,394.90 = 67,789.42/x
  3. Step 3: Cross multiply
    115,501.66x = 159,394.90 × 67,789.42
  4. Step 4: Simplify right side
    115,501.66x = 10,805,287,821.96
  5. Step 5: Solve for x
    x = 10,805,287,821.96/115,501.66
  6. Step 6: Final answer
    x = 93,550.93

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1.5x scale

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.