Home / 104,640.28-155,974.68-96,242.20

Finding the Fourth Proportional to 104,640.28, 155,974.68 and 96,242.20

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Solution

The fourth proportional to 104,640.28, 155,974.68 and 96,242.20 is: 143,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,640.28 : 155,974.68 = 96,242.20 : x
  2. Step 2: Convert to fraction form
    104,640.28/155,974.68 = 96,242.20/x
  3. Step 3: Cross multiply
    104,640.28x = 155,974.68 × 96,242.20
  4. Step 4: Simplify right side
    104,640.28x = 15,011,346,347.50
  5. Step 5: Solve for x
    x = 15,011,346,347.50/104,640.28
  6. Step 6: Final answer
    x = 143,456.67

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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.