Home / 123,203.38-170,013.68-69,485.19

Finding the Fourth Proportional to 123,203.38, 170,013.68 and 69,485.19

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Solution

The fourth proportional to 123,203.38, 170,013.68 and 69,485.19 is: 95,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,203.38 : 170,013.68 = 69,485.19 : x
  2. Step 2: Convert to fraction form
    123,203.38/170,013.68 = 69,485.19/x
  3. Step 3: Cross multiply
    123,203.38x = 170,013.68 × 69,485.19
  4. Step 4: Simplify right side
    123,203.38x = 11,813,433,480.17
  5. Step 5: Solve for x
    x = 11,813,433,480.17/123,203.38
  6. Step 6: Final answer
    x = 95,885.63

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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.