Home / 120,769.38-180,340.83-98,626.68

Finding the Fourth Proportional to 120,769.38, 180,340.83 and 98,626.68

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Solution

The fourth proportional to 120,769.38, 180,340.83 and 98,626.68 is: 147,275.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,769.38 : 180,340.83 = 98,626.68 : x
  2. Step 2: Convert to fraction form
    120,769.38/180,340.83 = 98,626.68/x
  3. Step 3: Cross multiply
    120,769.38x = 180,340.83 × 98,626.68
  4. Step 4: Simplify right side
    120,769.38x = 17,786,417,331.34
  5. Step 5: Solve for x
    x = 17,786,417,331.34/120,769.38
  6. Step 6: Final answer
    x = 147,275.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.