Home / 144,867.28-217,363.35-78,354.24

Finding the Fourth Proportional to 144,867.28, 217,363.35 and 78,354.24

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Solution

The fourth proportional to 144,867.28, 217,363.35 and 78,354.24 is: 117,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,867.28 : 217,363.35 = 78,354.24 : x
  2. Step 2: Convert to fraction form
    144,867.28/217,363.35 = 78,354.24/x
  3. Step 3: Cross multiply
    144,867.28x = 217,363.35 × 78,354.24
  4. Step 4: Simplify right side
    144,867.28x = 17,031,340,093.10
  5. Step 5: Solve for x
    x = 17,031,340,093.10/144,867.28
  6. Step 6: Final answer
    x = 117,565.13

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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.