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Finding the Fourth Proportional to 123,381.48, 170,269.48 and 69,667.26

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Solution

The fourth proportional to 123,381.48, 170,269.48 and 69,667.26 is: 96,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,381.48 : 170,269.48 = 69,667.26 : x
  2. Step 2: Convert to fraction form
    123,381.48/170,269.48 = 69,667.26/x
  3. Step 3: Cross multiply
    123,381.48x = 170,269.48 × 69,667.26
  4. Step 4: Simplify right side
    123,381.48x = 11,862,208,133.22
  5. Step 5: Solve for x
    x = 11,862,208,133.22/123,381.48
  6. Step 6: Final answer
    x = 96,142.53

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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.