Home / 266,101.08-398,806.02-108,145.72

Finding the Fourth Proportional to 266,101.08, 398,806.02 and 108,145.72

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Solution

The fourth proportional to 266,101.08, 398,806.02 and 108,145.72 is: 162,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,101.08 : 398,806.02 = 108,145.72 : x
  2. Step 2: Convert to fraction form
    266,101.08/398,806.02 = 108,145.72/x
  3. Step 3: Cross multiply
    266,101.08x = 398,806.02 × 108,145.72
  4. Step 4: Simplify right side
    266,101.08x = 43,129,164,173.23
  5. Step 5: Solve for x
    x = 43,129,164,173.23/266,101.08
  6. Step 6: Final answer
    x = 162,078.13

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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.