Home / 122,439.93-168,969.61-68,728.83

Finding the Fourth Proportional to 122,439.93, 168,969.61 and 68,728.83

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Solution

The fourth proportional to 122,439.93, 168,969.61 and 68,728.83 is: 94,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,439.93 : 168,969.61 = 68,728.83 : x
  2. Step 2: Convert to fraction form
    122,439.93/168,969.61 = 68,728.83/x
  3. Step 3: Cross multiply
    122,439.93x = 168,969.61 × 68,728.83
  4. Step 4: Simplify right side
    122,439.93x = 11,613,083,600.86
  5. Step 5: Solve for x
    x = 11,613,083,600.86/122,439.93
  6. Step 6: Final answer
    x = 94,847.19

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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.