Home / 126,078.87-173,989.68-69,490.26

Finding the Fourth Proportional to 126,078.87, 173,989.68 and 69,490.26

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Solution

The fourth proportional to 126,078.87, 173,989.68 and 69,490.26 is: 95,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,078.87 : 173,989.68 = 69,490.26 : x
  2. Step 2: Convert to fraction form
    126,078.87/173,989.68 = 69,490.26/x
  3. Step 3: Cross multiply
    126,078.87x = 173,989.68 × 69,490.26
  4. Step 4: Simplify right side
    126,078.87x = 12,090,588,100.52
  5. Step 5: Solve for x
    x = 12,090,588,100.52/126,078.87
  6. Step 6: Final answer
    x = 95,897.02

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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.