Home / 142,881.30-197,175.87-79,217.46

Finding the Fourth Proportional to 142,881.30, 197,175.87 and 79,217.46

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Solution

The fourth proportional to 142,881.30, 197,175.87 and 79,217.46 is: 109,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,881.30 : 197,175.87 = 79,217.46 : x
  2. Step 2: Convert to fraction form
    142,881.30/197,175.87 = 79,217.46/x
  3. Step 3: Cross multiply
    142,881.30x = 197,175.87 × 79,217.46
  4. Step 4: Simplify right side
    142,881.30x = 15,619,771,594.69
  5. Step 5: Solve for x
    x = 15,619,771,594.69/142,881.30
  6. Step 6: Final answer
    x = 109,319.92

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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.