Home / 103,157.28-141,429.96-101,291.04

Finding the Fourth Proportional to 103,157.28, 141,429.96 and 101,291.04

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Solution

The fourth proportional to 103,157.28, 141,429.96 and 101,291.04 is: 138,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,157.28 : 141,429.96 = 101,291.04 : x
  2. Step 2: Convert to fraction form
    103,157.28/141,429.96 = 101,291.04/x
  3. Step 3: Cross multiply
    103,157.28x = 141,429.96 × 101,291.04
  4. Step 4: Simplify right side
    103,157.28x = 14,325,587,735.56
  5. Step 5: Solve for x
    x = 14,325,587,735.56/103,157.28
  6. Step 6: Final answer
    x = 138,871.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.