Home / 126,613.95-174,746.21-78,882.68

Finding the Fourth Proportional to 126,613.95, 174,746.21 and 78,882.68

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Solution

The fourth proportional to 126,613.95, 174,746.21 and 78,882.68 is: 108,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,613.95 : 174,746.21 = 78,882.68 : x
  2. Step 2: Convert to fraction form
    126,613.95/174,746.21 = 78,882.68/x
  3. Step 3: Cross multiply
    126,613.95x = 174,746.21 × 78,882.68
  4. Step 4: Simplify right side
    126,613.95x = 13,784,448,096.50
  5. Step 5: Solve for x
    x = 13,784,448,096.50/126,613.95
  6. Step 6: Final answer
    x = 108,869.90

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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.