Home / 121,824.10-168,095.55-68,109.56

Finding the Fourth Proportional to 121,824.10, 168,095.55 and 68,109.56

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Solution

The fourth proportional to 121,824.10, 168,095.55 and 68,109.56 is: 93,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,824.10 : 168,095.55 = 68,109.56 : x
  2. Step 2: Convert to fraction form
    121,824.10/168,095.55 = 68,109.56/x
  3. Step 3: Cross multiply
    121,824.10x = 168,095.55 × 68,109.56
  4. Step 4: Simplify right side
    121,824.10x = 11,448,913,993.75
  5. Step 5: Solve for x
    x = 11,448,913,993.75/121,824.10
  6. Step 6: Final answer
    x = 93,979.06

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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.