Home / 143,432.88-197,931.24-79,769.04

Finding the Fourth Proportional to 143,432.88, 197,931.24 and 79,769.04

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Solution

The fourth proportional to 143,432.88, 197,931.24 and 79,769.04 is: 110,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,432.88 : 197,931.24 = 79,769.04 : x
  2. Step 2: Convert to fraction form
    143,432.88/197,931.24 = 79,769.04/x
  3. Step 3: Cross multiply
    143,432.88x = 197,931.24 × 79,769.04
  4. Step 4: Simplify right side
    143,432.88x = 15,788,785,000.81
  5. Step 5: Solve for x
    x = 15,788,785,000.81/143,432.88
  6. Step 6: Final answer
    x = 110,077.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.