Home / 115,502.40-159,395.94-67,790.16

Finding the Fourth Proportional to 115,502.40, 159,395.94 and 67,790.16

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Solution

The fourth proportional to 115,502.40, 159,395.94 and 67,790.16 is: 93,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.40 : 159,395.94 = 67,790.16 : x
  2. Step 2: Convert to fraction form
    115,502.40/159,395.94 = 67,790.16/x
  3. Step 3: Cross multiply
    115,502.40x = 159,395.94 × 67,790.16
  4. Step 4: Simplify right side
    115,502.40x = 10,805,476,275.95
  5. Step 5: Solve for x
    x = 10,805,476,275.95/115,502.40
  6. Step 6: Final answer
    x = 93,551.96

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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.