Home / 144,997.20-217,433.63-78,419.25

Finding the Fourth Proportional to 144,997.20, 217,433.63 and 78,419.25

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Solution

The fourth proportional to 144,997.20, 217,433.63 and 78,419.25 is: 117,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,997.20 : 217,433.63 = 78,419.25 : x
  2. Step 2: Convert to fraction form
    144,997.20/217,433.63 = 78,419.25/x
  3. Step 3: Cross multiply
    144,997.20x = 217,433.63 × 78,419.25
  4. Step 4: Simplify right side
    144,997.20x = 17,050,982,385.43
  5. Step 5: Solve for x
    x = 17,050,982,385.43/144,997.20
  6. Step 6: Final answer
    x = 117,595.25

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1.5x scale

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.