Home / 143,281.04-197,718.80-79,615.04

Finding the Fourth Proportional to 143,281.04, 197,718.80 and 79,615.04

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Solution

The fourth proportional to 143,281.04, 197,718.80 and 79,615.04 is: 109,863.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,281.04 : 197,718.80 = 79,615.04 : x
  2. Step 2: Convert to fraction form
    143,281.04/197,718.80 = 79,615.04/x
  3. Step 3: Cross multiply
    143,281.04x = 197,718.80 × 79,615.04
  4. Step 4: Simplify right side
    143,281.04x = 15,741,390,170.75
  5. Step 5: Solve for x
    x = 15,741,390,170.75/143,281.04
  6. Step 6: Final answer
    x = 109,863.73

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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.