Home / 143,568.64-215,335.68-38,385.28

Finding the Fourth Proportional to 143,568.64, 215,335.68 and 38,385.28

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Solution

The fourth proportional to 143,568.64, 215,335.68 and 38,385.28 is: 57,573.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,568.64 : 215,335.68 = 38,385.28 : x
  2. Step 2: Convert to fraction form
    143,568.64/215,335.68 = 38,385.28/x
  3. Step 3: Cross multiply
    143,568.64x = 215,335.68 × 38,385.28
  4. Step 4: Simplify right side
    143,568.64x = 8,265,720,370.79
  5. Step 5: Solve for x
    x = 8,265,720,370.79/143,568.64
  6. Step 6: Final answer
    x = 57,573.30

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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.