Home / 161,909.11-242,884.01-86,926.19

Finding the Fourth Proportional to 161,909.11, 242,884.01 and 86,926.19

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Solution

The fourth proportional to 161,909.11, 242,884.01 and 86,926.19 is: 130,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,909.11 : 242,884.01 = 86,926.19 : x
  2. Step 2: Convert to fraction form
    161,909.11/242,884.01 = 86,926.19/x
  3. Step 3: Cross multiply
    161,909.11x = 242,884.01 × 86,926.19
  4. Step 4: Simplify right side
    161,909.11x = 21,112,981,601.22
  5. Step 5: Solve for x
    x = 21,112,981,601.22/161,909.11
  6. Step 6: Final answer
    x = 130,400.21

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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.