Home / 115,559.74-159,470.49-64,573.21

Finding the Fourth Proportional to 115,559.74, 159,470.49 and 64,573.21

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Solution

The fourth proportional to 115,559.74, 159,470.49 and 64,573.21 is: 89,109.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,559.74 : 159,470.49 = 64,573.21 : x
  2. Step 2: Convert to fraction form
    115,559.74/159,470.49 = 64,573.21/x
  3. Step 3: Cross multiply
    115,559.74x = 159,470.49 × 64,573.21
  4. Step 4: Simplify right side
    115,559.74x = 10,297,521,439.57
  5. Step 5: Solve for x
    x = 10,297,521,439.57/115,559.74
  6. Step 6: Final answer
    x = 89,109.94

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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.