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Finding the Fourth Proportional to 115,097.52, 158,879.16 and 89,955.12

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Solution

The fourth proportional to 115,097.52, 158,879.16 and 89,955.12 is: 124,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,097.52 : 158,879.16 = 89,955.12 : x
  2. Step 2: Convert to fraction form
    115,097.52/158,879.16 = 89,955.12/x
  3. Step 3: Cross multiply
    115,097.52x = 158,879.16 × 89,955.12
  4. Step 4: Simplify right side
    115,097.52x = 14,291,993,903.30
  5. Step 5: Solve for x
    x = 14,291,993,903.30/115,097.52
  6. Step 6: Final answer
    x = 124,172.91

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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.