Home / 100,002.20-150,003.30-91,837.40

Finding the Fourth Proportional to 100,002.20, 150,003.30 and 91,837.40

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Solution

The fourth proportional to 100,002.20, 150,003.30 and 91,837.40 is: 137,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,002.20 : 150,003.30 = 91,837.40 : x
  2. Step 2: Convert to fraction form
    100,002.20/150,003.30 = 91,837.40/x
  3. Step 3: Cross multiply
    100,002.20x = 150,003.30 × 91,837.40
  4. Step 4: Simplify right side
    100,002.20x = 13,775,913,063.42
  5. Step 5: Solve for x
    x = 13,775,913,063.42/100,002.20
  6. Step 6: Final answer
    x = 137,756.10

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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.