Home / 143,463.60-197,979.21-79,801.41

Finding the Fourth Proportional to 143,463.60, 197,979.21 and 79,801.41

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Solution

The fourth proportional to 143,463.60, 197,979.21 and 79,801.41 is: 110,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,463.60 : 197,979.21 = 79,801.41 : x
  2. Step 2: Convert to fraction form
    143,463.60/197,979.21 = 79,801.41/x
  3. Step 3: Cross multiply
    143,463.60x = 197,979.21 × 79,801.41
  4. Step 4: Simplify right side
    143,463.60x = 15,799,020,108.69
  5. Step 5: Solve for x
    x = 15,799,020,108.69/143,463.60
  6. Step 6: Final answer
    x = 110,125.64

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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.