Home / 115,458.18-159,296.13-67,713.54

Finding the Fourth Proportional to 115,458.18, 159,296.13 and 67,713.54

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Solution

The fourth proportional to 115,458.18, 159,296.13 and 67,713.54 is: 93,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,458.18 : 159,296.13 = 67,713.54 : x
  2. Step 2: Convert to fraction form
    115,458.18/159,296.13 = 67,713.54/x
  3. Step 3: Cross multiply
    115,458.18x = 159,296.13 × 67,713.54
  4. Step 4: Simplify right side
    115,458.18x = 10,786,504,870.60
  5. Step 5: Solve for x
    x = 10,786,504,870.60/115,458.18
  6. Step 6: Final answer
    x = 93,423.48

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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.