Home / 121,727.16-168,719.73-114,719.13

Finding the Fourth Proportional to 121,727.16, 168,719.73 and 114,719.13

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Solution

The fourth proportional to 121,727.16, 168,719.73 and 114,719.13 is: 159,006.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,727.16 : 168,719.73 = 114,719.13 : x
  2. Step 2: Convert to fraction form
    121,727.16/168,719.73 = 114,719.13/x
  3. Step 3: Cross multiply
    121,727.16x = 168,719.73 × 114,719.13
  4. Step 4: Simplify right side
    121,727.16x = 19,355,380,639.43
  5. Step 5: Solve for x
    x = 19,355,380,639.43/121,727.16
  6. Step 6: Final answer
    x = 159,006.26

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.