Home / 115,011.78-158,552.24-89,473.28

Finding the Fourth Proportional to 115,011.78, 158,552.24 and 89,473.28

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Solution

The fourth proportional to 115,011.78, 158,552.24 and 89,473.28 is: 123,345.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,011.78 : 158,552.24 = 89,473.28 : x
  2. Step 2: Convert to fraction form
    115,011.78/158,552.24 = 89,473.28/x
  3. Step 3: Cross multiply
    115,011.78x = 158,552.24 × 89,473.28
  4. Step 4: Simplify right side
    115,011.78x = 14,186,188,964.15
  5. Step 5: Solve for x
    x = 14,186,188,964.15/115,011.78
  6. Step 6: Final answer
    x = 123,345.53

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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.