Home / 141,793.60-195,683.76-78,131.32

Finding the Fourth Proportional to 141,793.60, 195,683.76 and 78,131.32

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Solution

The fourth proportional to 141,793.60, 195,683.76 and 78,131.32 is: 107,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,793.60 : 195,683.76 = 78,131.32 : x
  2. Step 2: Convert to fraction form
    141,793.60/195,683.76 = 78,131.32/x
  3. Step 3: Cross multiply
    141,793.60x = 195,683.76 × 78,131.32
  4. Step 4: Simplify right side
    141,793.60x = 15,289,030,471.36
  5. Step 5: Solve for x
    x = 15,289,030,471.36/141,793.60
  6. Step 6: Final answer
    x = 107,825.96

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1.5x scale

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.