Home / 125,291.69-172,735.26-99,535.70

Finding the Fourth Proportional to 125,291.69, 172,735.26 and 99,535.70

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Solution

The fourth proportional to 125,291.69, 172,735.26 and 99,535.70 is: 137,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,291.69 : 172,735.26 = 99,535.70 : x
  2. Step 2: Convert to fraction form
    125,291.69/172,735.26 = 99,535.70/x
  3. Step 3: Cross multiply
    125,291.69x = 172,735.26 × 99,535.70
  4. Step 4: Simplify right side
    125,291.69x = 17,193,324,403.94
  5. Step 5: Solve for x
    x = 17,193,324,403.94/125,291.69
  6. Step 6: Final answer
    x = 137,226.38

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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.