Home / 102,836.10-153,926.10-80,528.70

Finding the Fourth Proportional to 102,836.10, 153,926.10 and 80,528.70

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Solution

The fourth proportional to 102,836.10, 153,926.10 and 80,528.70 is: 120,536.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,836.10 : 153,926.10 = 80,528.70 : x
  2. Step 2: Convert to fraction form
    102,836.10/153,926.10 = 80,528.70/x
  3. Step 3: Cross multiply
    102,836.10x = 153,926.10 × 80,528.70
  4. Step 4: Simplify right side
    102,836.10x = 12,395,468,729.07
  5. Step 5: Solve for x
    x = 12,395,468,729.07/102,836.10
  6. Step 6: Final answer
    x = 120,536.16

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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.