Home / 97,979.20-146,815.20-84,769.60

Finding the Fourth Proportional to 97,979.20, 146,815.20 and 84,769.60

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Solution

The fourth proportional to 97,979.20, 146,815.20 and 84,769.60 is: 127,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,979.20 : 146,815.20 = 84,769.60 : x
  2. Step 2: Convert to fraction form
    97,979.20/146,815.20 = 84,769.60/x
  3. Step 3: Cross multiply
    97,979.20x = 146,815.20 × 84,769.60
  4. Step 4: Simplify right side
    97,979.20x = 12,445,465,777.92
  5. Step 5: Solve for x
    x = 12,445,465,777.92/97,979.20
  6. Step 6: Final answer
    x = 127,021.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.