Home / 142,233.60-213,171.84-72,130.56

Finding the Fourth Proportional to 142,233.60, 213,171.84 and 72,130.56

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Solution

The fourth proportional to 142,233.60, 213,171.84 and 72,130.56 is: 108,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,233.60 : 213,171.84 = 72,130.56 : x
  2. Step 2: Convert to fraction form
    142,233.60/213,171.84 = 72,130.56/x
  3. Step 3: Cross multiply
    142,233.60x = 213,171.84 × 72,130.56
  4. Step 4: Simplify right side
    142,233.60x = 15,376,204,195.43
  5. Step 5: Solve for x
    x = 15,376,204,195.43/142,233.60
  6. Step 6: Final answer
    x = 108,105.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.