Home / 115,348.41-159,161.72-77,046.53

Finding the Fourth Proportional to 115,348.41, 159,161.72 and 77,046.53

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Solution

The fourth proportional to 115,348.41, 159,161.72 and 77,046.53 is: 106,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,348.41 : 159,161.72 = 77,046.53 : x
  2. Step 2: Convert to fraction form
    115,348.41/159,161.72 = 77,046.53/x
  3. Step 3: Cross multiply
    115,348.41x = 159,161.72 × 77,046.53
  4. Step 4: Simplify right side
    115,348.41x = 12,262,857,053.79
  5. Step 5: Solve for x
    x = 12,262,857,053.79/115,348.41
  6. Step 6: Final answer
    x = 106,311.45

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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.