Home / 115,009.77-158,549.49-89,471.28

Finding the Fourth Proportional to 115,009.77, 158,549.49 and 89,471.28

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Solution

The fourth proportional to 115,009.77, 158,549.49 and 89,471.28 is: 123,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,009.77 : 158,549.49 = 89,471.28 : x
  2. Step 2: Convert to fraction form
    115,009.77/158,549.49 = 89,471.28/x
  3. Step 3: Cross multiply
    115,009.77x = 158,549.49 × 89,471.28
  4. Step 4: Simplify right side
    115,009.77x = 14,185,625,813.65
  5. Step 5: Solve for x
    x = 14,185,625,813.65/115,009.77
  6. Step 6: Final answer
    x = 123,342.79

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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.