Home / 115,921.77-173,625.75-89,070.12

Finding the Fourth Proportional to 115,921.77, 173,625.75 and 89,070.12

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Solution

The fourth proportional to 115,921.77, 173,625.75 and 89,070.12 is: 133,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,921.77 : 173,625.75 = 89,070.12 : x
  2. Step 2: Convert to fraction form
    115,921.77/173,625.75 = 89,070.12/x
  3. Step 3: Cross multiply
    115,921.77x = 173,625.75 × 89,070.12
  4. Step 4: Simplify right side
    115,921.77x = 15,464,866,387.59
  5. Step 5: Solve for x
    x = 15,464,866,387.59/115,921.77
  6. Step 6: Final answer
    x = 133,407.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.