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Finding the Fourth Proportional to 104,801.80, 157,202.70 and 100,209.10

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Solution

The fourth proportional to 104,801.80, 157,202.70 and 100,209.10 is: 150,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,801.80 : 157,202.70 = 100,209.10 : x
  2. Step 2: Convert to fraction form
    104,801.80/157,202.70 = 100,209.10/x
  3. Step 3: Cross multiply
    104,801.80x = 157,202.70 × 100,209.10
  4. Step 4: Simplify right side
    104,801.80x = 15,753,141,084.57
  5. Step 5: Solve for x
    x = 15,753,141,084.57/104,801.80
  6. Step 6: Final answer
    x = 150,313.65

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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.