Home / 121,743.08-168,011.94-68,029.40

Finding the Fourth Proportional to 121,743.08, 168,011.94 and 68,029.40

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Solution

The fourth proportional to 121,743.08, 168,011.94 and 68,029.40 is: 93,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,743.08 : 168,011.94 = 68,029.40 : x
  2. Step 2: Convert to fraction form
    121,743.08/168,011.94 = 68,029.40/x
  3. Step 3: Cross multiply
    121,743.08x = 168,011.94 × 68,029.40
  4. Step 4: Simplify right side
    121,743.08x = 11,429,751,471.04
  5. Step 5: Solve for x
    x = 11,429,751,471.04/121,743.08
  6. Step 6: Final answer
    x = 93,884.20

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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.