Home / 109,742.10-164,613.15-65,505.30

Finding the Fourth Proportional to 109,742.10, 164,613.15 and 65,505.30

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Solution

The fourth proportional to 109,742.10, 164,613.15 and 65,505.30 is: 98,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,742.10 : 164,613.15 = 65,505.30 : x
  2. Step 2: Convert to fraction form
    109,742.10/164,613.15 = 65,505.30/x
  3. Step 3: Cross multiply
    109,742.10x = 164,613.15 × 65,505.30
  4. Step 4: Simplify right side
    109,742.10x = 10,783,033,774.70
  5. Step 5: Solve for x
    x = 10,783,033,774.70/109,742.10
  6. Step 6: Final answer
    x = 98,257.95

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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.