Home / 140,021.92-193,121.04-89,725.60

Finding the Fourth Proportional to 140,021.92, 193,121.04 and 89,725.60

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Solution

The fourth proportional to 140,021.92, 193,121.04 and 89,725.60 is: 123,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,021.92 : 193,121.04 = 89,725.60 : x
  2. Step 2: Convert to fraction form
    140,021.92/193,121.04 = 89,725.60/x
  3. Step 3: Cross multiply
    140,021.92x = 193,121.04 × 89,725.60
  4. Step 4: Simplify right side
    140,021.92x = 17,327,901,186.62
  5. Step 5: Solve for x
    x = 17,327,901,186.62/140,021.92
  6. Step 6: Final answer
    x = 123,751.35

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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.