Home / 121,902.03-168,238.76-68,200.65

Finding the Fourth Proportional to 121,902.03, 168,238.76 and 68,200.65

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Solution

The fourth proportional to 121,902.03, 168,238.76 and 68,200.65 is: 94,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,902.03 : 168,238.76 = 68,200.65 : x
  2. Step 2: Convert to fraction form
    121,902.03/168,238.76 = 68,200.65/x
  3. Step 3: Cross multiply
    121,902.03x = 168,238.76 × 68,200.65
  4. Step 4: Simplify right side
    121,902.03x = 11,473,992,446.19
  5. Step 5: Solve for x
    x = 11,473,992,446.19/121,902.03
  6. Step 6: Final answer
    x = 94,124.70

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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.