Home / 157,059.75-235,665.23-78,180.87

Finding the Fourth Proportional to 157,059.75, 235,665.23 and 78,180.87

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Solution

The fourth proportional to 157,059.75, 235,665.23 and 78,180.87 is: 117,308.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,059.75 : 235,665.23 = 78,180.87 : x
  2. Step 2: Convert to fraction form
    157,059.75/235,665.23 = 78,180.87/x
  3. Step 3: Cross multiply
    157,059.75x = 235,665.23 × 78,180.87
  4. Step 4: Simplify right side
    157,059.75x = 18,424,512,319.25
  5. Step 5: Solve for x
    x = 18,424,512,319.25/157,059.75
  6. Step 6: Final answer
    x = 117,308.94

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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.