Home / 157,257.60-235,796.43-72,974.38

Finding the Fourth Proportional to 157,257.60, 235,796.43 and 72,974.38

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Solution

The fourth proportional to 157,257.60, 235,796.43 and 72,974.38 is: 109,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,257.60 : 235,796.43 = 72,974.38 : x
  2. Step 2: Convert to fraction form
    157,257.60/235,796.43 = 72,974.38/x
  3. Step 3: Cross multiply
    157,257.60x = 235,796.43 × 72,974.38
  4. Step 4: Simplify right side
    157,257.60x = 17,207,097,132.85
  5. Step 5: Solve for x
    x = 17,207,097,132.85/157,257.60
  6. Step 6: Final answer
    x = 109,419.81

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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.