Home / 121,746.78-168,007.33-68,032.24

Finding the Fourth Proportional to 121,746.78, 168,007.33 and 68,032.24

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Solution

The fourth proportional to 121,746.78, 168,007.33 and 68,032.24 is: 93,882.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,746.78 : 168,007.33 = 68,032.24 : x
  2. Step 2: Convert to fraction form
    121,746.78/168,007.33 = 68,032.24/x
  3. Step 3: Cross multiply
    121,746.78x = 168,007.33 × 68,032.24
  4. Step 4: Simplify right side
    121,746.78x = 11,429,914,996.32
  5. Step 5: Solve for x
    x = 11,429,914,996.32/121,746.78
  6. Step 6: Final answer
    x = 93,882.69

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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.