Home / 143,432.48-197,935.44-79,767.20

Finding the Fourth Proportional to 143,432.48, 197,935.44 and 79,767.20

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Solution

The fourth proportional to 143,432.48, 197,935.44 and 79,767.20 is: 110,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,432.48 : 197,935.44 = 79,767.20 : x
  2. Step 2: Convert to fraction form
    143,432.48/197,935.44 = 79,767.20/x
  3. Step 3: Cross multiply
    143,432.48x = 197,935.44 × 79,767.20
  4. Step 4: Simplify right side
    143,432.48x = 15,788,755,829.57
  5. Step 5: Solve for x
    x = 15,788,755,829.57/143,432.48
  6. Step 6: Final answer
    x = 110,077.97

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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.