Home / 142,567.38-196,721.06-82,126.22

Finding the Fourth Proportional to 142,567.38, 196,721.06 and 82,126.22

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Solution

The fourth proportional to 142,567.38, 196,721.06 and 82,126.22 is: 113,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,567.38 : 196,721.06 = 82,126.22 : x
  2. Step 2: Convert to fraction form
    142,567.38/196,721.06 = 82,126.22/x
  3. Step 3: Cross multiply
    142,567.38x = 196,721.06 × 82,126.22
  4. Step 4: Simplify right side
    142,567.38x = 16,155,957,052.19
  5. Step 5: Solve for x
    x = 16,155,957,052.19/142,567.38
  6. Step 6: Final answer
    x = 113,321.55

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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.