Home / 157,259.60-235,799.42-72,976.38

Finding the Fourth Proportional to 157,259.60, 235,799.42 and 72,976.38

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Solution

The fourth proportional to 157,259.60, 235,799.42 and 72,976.38 is: 109,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,259.60 : 235,799.42 = 72,976.38 : x
  2. Step 2: Convert to fraction form
    157,259.60/235,799.42 = 72,976.38/x
  3. Step 3: Cross multiply
    157,259.60x = 235,799.42 × 72,976.38
  4. Step 4: Simplify right side
    157,259.60x = 17,207,788,077.70
  5. Step 5: Solve for x
    x = 17,207,788,077.70/157,259.60
  6. Step 6: Final answer
    x = 109,422.81

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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.