Home / 123,307.85-170,165.07-68,859.75

Finding the Fourth Proportional to 123,307.85, 170,165.07 and 68,859.75

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Solution

The fourth proportional to 123,307.85, 170,165.07 and 68,859.75 is: 95,026.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,307.85 : 170,165.07 = 68,859.75 : x
  2. Step 2: Convert to fraction form
    123,307.85/170,165.07 = 68,859.75/x
  3. Step 3: Cross multiply
    123,307.85x = 170,165.07 × 68,859.75
  4. Step 4: Simplify right side
    123,307.85x = 11,717,524,178.93
  5. Step 5: Solve for x
    x = 11,717,524,178.93/123,307.85
  6. Step 6: Final answer
    x = 95,026.59

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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.