Home / 142,966.38-197,317.23-79,324.68

Finding the Fourth Proportional to 142,966.38, 197,317.23 and 79,324.68

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Solution

The fourth proportional to 142,966.38, 197,317.23 and 79,324.68 is: 109,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,966.38 : 197,317.23 = 79,324.68 : x
  2. Step 2: Convert to fraction form
    142,966.38/197,317.23 = 79,324.68/x
  3. Step 3: Cross multiply
    142,966.38x = 197,317.23 × 79,324.68
  4. Step 4: Simplify right side
    142,966.38x = 15,652,126,128.24
  5. Step 5: Solve for x
    x = 15,652,126,128.24/142,966.38
  6. Step 6: Final answer
    x = 109,481.17

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1.5x scale

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.