Home / 121,763.08-168,031.38-68,048.92

Finding the Fourth Proportional to 121,763.08, 168,031.38 and 68,048.92

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Solution

The fourth proportional to 121,763.08, 168,031.38 and 68,048.92 is: 93,906.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,763.08 : 168,031.38 = 68,048.92 : x
  2. Step 2: Convert to fraction form
    121,763.08/168,031.38 = 68,048.92/x
  3. Step 3: Cross multiply
    121,763.08x = 168,031.38 × 68,048.92
  4. Step 4: Simplify right side
    121,763.08x = 11,434,353,935.11
  5. Step 5: Solve for x
    x = 11,434,353,935.11/121,763.08
  6. Step 6: Final answer
    x = 93,906.58

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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.