Home / 123,418.85-170,316.74-69,703.70

Finding the Fourth Proportional to 123,418.85, 170,316.74 and 69,703.70

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Solution

The fourth proportional to 123,418.85, 170,316.74 and 69,703.70 is: 96,190.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.85 : 170,316.74 = 69,703.70 : x
  2. Step 2: Convert to fraction form
    123,418.85/170,316.74 = 69,703.70/x
  3. Step 3: Cross multiply
    123,418.85x = 170,316.74 × 69,703.70
  4. Step 4: Simplify right side
    123,418.85x = 11,871,706,272.61
  5. Step 5: Solve for x
    x = 11,871,706,272.61/123,418.85
  6. Step 6: Final answer
    x = 96,190.39

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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.