Home / 126,742.17-174,834.14-81,426.90

Finding the Fourth Proportional to 126,742.17, 174,834.14 and 81,426.90

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Solution

The fourth proportional to 126,742.17, 174,834.14 and 81,426.90 is: 112,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,742.17 : 174,834.14 = 81,426.90 : x
  2. Step 2: Convert to fraction form
    126,742.17/174,834.14 = 81,426.90/x
  3. Step 3: Cross multiply
    126,742.17x = 174,834.14 × 81,426.90
  4. Step 4: Simplify right side
    126,742.17x = 14,236,201,627.23
  5. Step 5: Solve for x
    x = 14,236,201,627.23/126,742.17
  6. Step 6: Final answer
    x = 112,324.11

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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.