Home / 161,869.94-223,380.79-90,254.50

Finding the Fourth Proportional to 161,869.94, 223,380.79 and 90,254.50

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Solution

The fourth proportional to 161,869.94, 223,380.79 and 90,254.50 is: 124,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,869.94 : 223,380.79 = 90,254.50 : x
  2. Step 2: Convert to fraction form
    161,869.94/223,380.79 = 90,254.50/x
  3. Step 3: Cross multiply
    161,869.94x = 223,380.79 × 90,254.50
  4. Step 4: Simplify right side
    161,869.94x = 20,161,121,983.48
  5. Step 5: Solve for x
    x = 20,161,121,983.48/161,869.94
  6. Step 6: Final answer
    x = 124,551.36

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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.