Home / 109,720.90-164,581.35-101,167.30

Finding the Fourth Proportional to 109,720.90, 164,581.35 and 101,167.30

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Solution

The fourth proportional to 109,720.90, 164,581.35 and 101,167.30 is: 151,750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,720.90 : 164,581.35 = 101,167.30 : x
  2. Step 2: Convert to fraction form
    109,720.90/164,581.35 = 101,167.30/x
  3. Step 3: Cross multiply
    109,720.90x = 164,581.35 × 101,167.30
  4. Step 4: Simplify right side
    109,720.90x = 16,650,250,809.86
  5. Step 5: Solve for x
    x = 16,650,250,809.86/109,720.90
  6. Step 6: Final answer
    x = 151,750.95

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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.