Home / 123,205.92-170,025.77-71,535.13

Finding the Fourth Proportional to 123,205.92, 170,025.77 and 71,535.13

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Solution

The fourth proportional to 123,205.92, 170,025.77 and 71,535.13 is: 98,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,205.92 : 170,025.77 = 71,535.13 : x
  2. Step 2: Convert to fraction form
    123,205.92/170,025.77 = 71,535.13/x
  3. Step 3: Cross multiply
    123,205.92x = 170,025.77 × 71,535.13
  4. Step 4: Simplify right side
    123,205.92x = 12,162,814,352.50
  5. Step 5: Solve for x
    x = 12,162,814,352.50/123,205.92
  6. Step 6: Final answer
    x = 98,719.40

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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.