Home / 143,374.80-197,853.97-77,962.20

Finding the Fourth Proportional to 143,374.80, 197,853.97 and 77,962.20

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Solution

The fourth proportional to 143,374.80, 197,853.97 and 77,962.20 is: 107,586.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,374.80 : 197,853.97 = 77,962.20 : x
  2. Step 2: Convert to fraction form
    143,374.80/197,853.97 = 77,962.20/x
  3. Step 3: Cross multiply
    143,374.80x = 197,853.97 × 77,962.20
  4. Step 4: Simplify right side
    143,374.80x = 15,425,129,769.99
  5. Step 5: Solve for x
    x = 15,425,129,769.99/143,374.80
  6. Step 6: Final answer
    x = 107,586.06

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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.