Home / 143,648.28-215,565.36-64,757.70

Finding the Fourth Proportional to 143,648.28, 215,565.36 and 64,757.70

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Solution

The fourth proportional to 143,648.28, 215,565.36 and 64,757.70 is: 97,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,648.28 : 215,565.36 = 64,757.70 : x
  2. Step 2: Convert to fraction form
    143,648.28/215,565.36 = 64,757.70/x
  3. Step 3: Cross multiply
    143,648.28x = 215,565.36 × 64,757.70
  4. Step 4: Simplify right side
    143,648.28x = 13,959,516,913.27
  5. Step 5: Solve for x
    x = 13,959,516,913.27/143,648.28
  6. Step 6: Final answer
    x = 97,178.45

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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.