Home / 134,966.20-202,449.30-90,729.40

Finding the Fourth Proportional to 134,966.20, 202,449.30 and 90,729.40

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Solution

The fourth proportional to 134,966.20, 202,449.30 and 90,729.40 is: 136,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,966.20 : 202,449.30 = 90,729.40 : x
  2. Step 2: Convert to fraction form
    134,966.20/202,449.30 = 90,729.40/x
  3. Step 3: Cross multiply
    134,966.20x = 202,449.30 × 90,729.40
  4. Step 4: Simplify right side
    134,966.20x = 18,368,103,519.42
  5. Step 5: Solve for x
    x = 18,368,103,519.42/134,966.20
  6. Step 6: Final answer
    x = 136,094.10

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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.