Home / 123,324.08-170,168.99-72,317.57

Finding the Fourth Proportional to 123,324.08, 170,168.99 and 72,317.57

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Solution

The fourth proportional to 123,324.08, 170,168.99 and 72,317.57 is: 99,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,324.08 : 170,168.99 = 72,317.57 : x
  2. Step 2: Convert to fraction form
    123,324.08/170,168.99 = 72,317.57/x
  3. Step 3: Cross multiply
    123,324.08x = 170,168.99 × 72,317.57
  4. Step 4: Simplify right side
    123,324.08x = 12,306,206,633.72
  5. Step 5: Solve for x
    x = 12,306,206,633.72/123,324.08
  6. Step 6: Final answer
    x = 99,787.54

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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.