Home / 123,183.40-169,998.04-68,740.32

Finding the Fourth Proportional to 123,183.40, 169,998.04 and 68,740.32

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Solution

The fourth proportional to 123,183.40, 169,998.04 and 68,740.32 is: 94,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,183.40 : 169,998.04 = 68,740.32 : x
  2. Step 2: Convert to fraction form
    123,183.40/169,998.04 = 68,740.32/x
  3. Step 3: Cross multiply
    123,183.40x = 169,998.04 × 68,740.32
  4. Step 4: Simplify right side
    123,183.40x = 11,685,719,668.97
  5. Step 5: Solve for x
    x = 11,685,719,668.97/123,183.40
  6. Step 6: Final answer
    x = 94,864.40

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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.