Home / 72,114.07-108,171.18-18,806.01

Finding the Fourth Proportional to 72,114.07, 108,171.18 and 18,806.01

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Solution

The fourth proportional to 72,114.07, 108,171.18 and 18,806.01 is: 28,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114.07 : 108,171.18 = 18,806.01 : x
  2. Step 2: Convert to fraction form
    72,114.07/108,171.18 = 18,806.01/x
  3. Step 3: Cross multiply
    72,114.07x = 108,171.18 × 18,806.01
  4. Step 4: Simplify right side
    72,114.07x = 2,034,268,292.79
  5. Step 5: Solve for x
    x = 2,034,268,292.79/72,114.07
  6. Step 6: Final answer
    x = 28,209.03

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1.5x scale

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.