Home / 157,211.28-216,944.73-85,591.53

Finding the Fourth Proportional to 157,211.28, 216,944.73 and 85,591.53

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Solution

The fourth proportional to 157,211.28, 216,944.73 and 85,591.53 is: 118,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,211.28 : 216,944.73 = 85,591.53 : x
  2. Step 2: Convert to fraction form
    157,211.28/216,944.73 = 85,591.53/x
  3. Step 3: Cross multiply
    157,211.28x = 216,944.73 × 85,591.53
  4. Step 4: Simplify right side
    157,211.28x = 18,568,631,366.14
  5. Step 5: Solve for x
    x = 18,568,631,366.14/157,211.28
  6. Step 6: Final answer
    x = 118,112.59

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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.