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Finding the Fourth Proportional to 71,568.90, 100,334.70 and 71,568.90

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Solution

The fourth proportional to 71,568.90, 100,334.70 and 71,568.90 is: 100,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.90 : 100,334.70 = 71,568.90 : x
  2. Step 2: Convert to fraction form
    71,568.90/100,334.70 = 71,568.90/x
  3. Step 3: Cross multiply
    71,568.90x = 100,334.70 × 71,568.90
  4. Step 4: Simplify right side
    71,568.90x = 7,180,844,110.83
  5. Step 5: Solve for x
    x = 7,180,844,110.83/71,568.90
  6. Step 6: Final answer
    x = 100,334.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.