Home / 126,436.30-174,481.94-72,719.92

Finding the Fourth Proportional to 126,436.30, 174,481.94 and 72,719.92

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Solution

The fourth proportional to 126,436.30, 174,481.94 and 72,719.92 is: 100,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,436.30 : 174,481.94 = 72,719.92 : x
  2. Step 2: Convert to fraction form
    126,436.30/174,481.94 = 72,719.92/x
  3. Step 3: Cross multiply
    126,436.30x = 174,481.94 × 72,719.92
  4. Step 4: Simplify right side
    126,436.30x = 12,688,312,718.24
  5. Step 5: Solve for x
    x = 12,688,312,718.24/126,436.30
  6. Step 6: Final answer
    x = 100,353.40

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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.