Home / 123,408.24-170,294.04-69,685.80

Finding the Fourth Proportional to 123,408.24, 170,294.04 and 69,685.80

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Solution

The fourth proportional to 123,408.24, 170,294.04 and 69,685.80 is: 96,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,408.24 : 170,294.04 = 69,685.80 : x
  2. Step 2: Convert to fraction form
    123,408.24/170,294.04 = 69,685.80/x
  3. Step 3: Cross multiply
    123,408.24x = 170,294.04 × 69,685.80
  4. Step 4: Simplify right side
    123,408.24x = 11,867,076,412.63
  5. Step 5: Solve for x
    x = 11,867,076,412.63/123,408.24
  6. Step 6: Final answer
    x = 96,161.13

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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.