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Finding the Fourth Proportional to 115,010.77, 158,550.87 and 89,472.28

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Solution

The fourth proportional to 115,010.77, 158,550.87 and 89,472.28 is: 123,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,010.77 : 158,550.87 = 89,472.28 : x
  2. Step 2: Convert to fraction form
    115,010.77/158,550.87 = 89,472.28/x
  3. Step 3: Cross multiply
    115,010.77x = 158,550.87 × 89,472.28
  4. Step 4: Simplify right side
    115,010.77x = 14,185,907,834.88
  5. Step 5: Solve for x
    x = 14,185,907,834.88/115,010.77
  6. Step 6: Final answer
    x = 123,344.17

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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.