Home / 123,418.50-170,317.62-66,829.92

Finding the Fourth Proportional to 123,418.50, 170,317.62 and 66,829.92

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Solution

The fourth proportional to 123,418.50, 170,317.62 and 66,829.92 is: 92,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.50 : 170,317.62 = 66,829.92 : x
  2. Step 2: Convert to fraction form
    123,418.50/170,317.62 = 66,829.92/x
  3. Step 3: Cross multiply
    123,418.50x = 170,317.62 × 66,829.92
  4. Step 4: Simplify right side
    123,418.50x = 11,382,312,919.19
  5. Step 5: Solve for x
    x = 11,382,312,919.19/123,418.50
  6. Step 6: Final answer
    x = 92,225.34

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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.