Home / 109,829.10-164,743.65-65,505.90

Finding the Fourth Proportional to 109,829.10, 164,743.65 and 65,505.90

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Solution

The fourth proportional to 109,829.10, 164,743.65 and 65,505.90 is: 98,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,829.10 : 164,743.65 = 65,505.90 : x
  2. Step 2: Convert to fraction form
    109,829.10/164,743.65 = 65,505.90/x
  3. Step 3: Cross multiply
    109,829.10x = 164,743.65 × 65,505.90
  4. Step 4: Simplify right side
    109,829.10x = 10,791,681,062.54
  5. Step 5: Solve for x
    x = 10,791,681,062.54/109,829.10
  6. Step 6: Final answer
    x = 98,258.85

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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.