Home / 142,502.11-196,620.51-85,132.33

Finding the Fourth Proportional to 142,502.11, 196,620.51 and 85,132.33

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Solution

The fourth proportional to 142,502.11, 196,620.51 and 85,132.33 is: 117,463.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,502.11 : 196,620.51 = 85,132.33 : x
  2. Step 2: Convert to fraction form
    142,502.11/196,620.51 = 85,132.33/x
  3. Step 3: Cross multiply
    142,502.11x = 196,620.51 × 85,132.33
  4. Step 4: Simplify right side
    142,502.11x = 16,738,762,142.09
  5. Step 5: Solve for x
    x = 16,738,762,142.09/142,502.11
  6. Step 6: Final answer
    x = 117,463.26

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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.