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Finding the Fourth Proportional to 100,499.40, 140,524.20 and 100,499.40

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Solution

The fourth proportional to 100,499.40, 140,524.20 and 100,499.40 is: 140,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,499.40 : 140,524.20 = 100,499.40 : x
  2. Step 2: Convert to fraction form
    100,499.40/140,524.20 = 100,499.40/x
  3. Step 3: Cross multiply
    100,499.40x = 140,524.20 × 100,499.40
  4. Step 4: Simplify right side
    100,499.40x = 14,122,597,785.48
  5. Step 5: Solve for x
    x = 14,122,597,785.48/100,499.40
  6. Step 6: Final answer
    x = 140,524.20

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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.