Home / 161,877.18-223,387.47-89,286.78

Finding the Fourth Proportional to 161,877.18, 223,387.47 and 89,286.78

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Solution

The fourth proportional to 161,877.18, 223,387.47 and 89,286.78 is: 123,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,877.18 : 223,387.47 = 89,286.78 : x
  2. Step 2: Convert to fraction form
    161,877.18/223,387.47 = 89,286.78/x
  3. Step 3: Cross multiply
    161,877.18x = 223,387.47 × 89,286.78
  4. Step 4: Simplify right side
    161,877.18x = 19,945,548,098.07
  5. Step 5: Solve for x
    x = 19,945,548,098.07/161,877.18
  6. Step 6: Final answer
    x = 123,214.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.