Home / 108,211.24-163,055.51-88,921.90

Finding the Fourth Proportional to 108,211.24, 163,055.51 and 88,921.90

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Solution

The fourth proportional to 108,211.24, 163,055.51 and 88,921.90 is: 133,989.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,211.24 : 163,055.51 = 88,921.90 : x
  2. Step 2: Convert to fraction form
    108,211.24/163,055.51 = 88,921.90/x
  3. Step 3: Cross multiply
    108,211.24x = 163,055.51 × 88,921.90
  4. Step 4: Simplify right side
    108,211.24x = 14,499,205,597.24
  5. Step 5: Solve for x
    x = 14,499,205,597.24/108,211.24
  6. Step 6: Final answer
    x = 133,989.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.