Home / 123,204.09-170,021.19-69,488.77

Finding the Fourth Proportional to 123,204.09, 170,021.19 and 69,488.77

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Solution

The fourth proportional to 123,204.09, 170,021.19 and 69,488.77 is: 95,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,204.09 : 170,021.19 = 69,488.77 : x
  2. Step 2: Convert to fraction form
    123,204.09/170,021.19 = 69,488.77/x
  3. Step 3: Cross multiply
    123,204.09x = 170,021.19 × 69,488.77
  4. Step 4: Simplify right side
    123,204.09x = 11,814,563,367.04
  5. Step 5: Solve for x
    x = 11,814,563,367.04/123,204.09
  6. Step 6: Final answer
    x = 95,894.25

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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.