Home / 125,115.87-172,660.37-67,755.23

Finding the Fourth Proportional to 125,115.87, 172,660.37 and 67,755.23

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Solution

The fourth proportional to 125,115.87, 172,660.37 and 67,755.23 is: 93,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,115.87 : 172,660.37 = 67,755.23 : x
  2. Step 2: Convert to fraction form
    125,115.87/172,660.37 = 67,755.23/x
  3. Step 3: Cross multiply
    125,115.87x = 172,660.37 × 67,755.23
  4. Step 4: Simplify right side
    125,115.87x = 11,698,641,879.16
  5. Step 5: Solve for x
    x = 11,698,641,879.16/125,115.87
  6. Step 6: Final answer
    x = 93,502.46

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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.