Home / 143,821.30-215,549.70-54,956.20

Finding the Fourth Proportional to 143,821.30, 215,549.70 and 54,956.20

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Solution

The fourth proportional to 143,821.30, 215,549.70 and 54,956.20 is: 82,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,821.30 : 215,549.70 = 54,956.20 : x
  2. Step 2: Convert to fraction form
    143,821.30/215,549.70 = 54,956.20/x
  3. Step 3: Cross multiply
    143,821.30x = 215,549.70 × 54,956.20
  4. Step 4: Simplify right side
    143,821.30x = 11,845,792,423.14
  5. Step 5: Solve for x
    x = 11,845,792,423.14/143,821.30
  6. Step 6: Final answer
    x = 82,364.66

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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.