Home / 128,127.22-192,191.51-84,033.20

Finding the Fourth Proportional to 128,127.22, 192,191.51 and 84,033.20

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Solution

The fourth proportional to 128,127.22, 192,191.51 and 84,033.20 is: 126,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,127.22 : 192,191.51 = 84,033.20 : x
  2. Step 2: Convert to fraction form
    128,127.22/192,191.51 = 84,033.20/x
  3. Step 3: Cross multiply
    128,127.22x = 192,191.51 × 84,033.20
  4. Step 4: Simplify right side
    128,127.22x = 16,150,466,971.27
  5. Step 5: Solve for x
    x = 16,150,466,971.27/128,127.22
  6. Step 6: Final answer
    x = 126,050.24

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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.