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Finding the Fourth Proportional to 157,480.80, 217,323.84 and 93,819.60

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Solution

The fourth proportional to 157,480.80, 217,323.84 and 93,819.60 is: 129,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,480.80 : 217,323.84 = 93,819.60 : x
  2. Step 2: Convert to fraction form
    157,480.80/217,323.84 = 93,819.60/x
  3. Step 3: Cross multiply
    157,480.80x = 217,323.84 × 93,819.60
  4. Step 4: Simplify right side
    157,480.80x = 20,389,235,739.26
  5. Step 5: Solve for x
    x = 20,389,235,739.26/157,480.80
  6. Step 6: Final answer
    x = 129,471.25

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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.