Home / 134,769.60-201,862.80-72,367.20

Finding the Fourth Proportional to 134,769.60, 201,862.80 and 72,367.20

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Solution

The fourth proportional to 134,769.60, 201,862.80 and 72,367.20 is: 108,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,769.60 : 201,862.80 = 72,367.20 : x
  2. Step 2: Convert to fraction form
    134,769.60/201,862.80 = 72,367.20/x
  3. Step 3: Cross multiply
    134,769.60x = 201,862.80 × 72,367.20
  4. Step 4: Simplify right side
    134,769.60x = 14,608,245,620.16
  5. Step 5: Solve for x
    x = 14,608,245,620.16/134,769.60
  6. Step 6: Final answer
    x = 108,394.22

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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.