Home / 161,900.20-223,395.42-90,278.20

Finding the Fourth Proportional to 161,900.20, 223,395.42 and 90,278.20

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Solution

The fourth proportional to 161,900.20, 223,395.42 and 90,278.20 is: 124,568.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,900.20 : 223,395.42 = 90,278.20 : x
  2. Step 2: Convert to fraction form
    161,900.20/223,395.42 = 90,278.20/x
  3. Step 3: Cross multiply
    161,900.20x = 223,395.42 × 90,278.20
  4. Step 4: Simplify right side
    161,900.20x = 20,167,736,405.84
  5. Step 5: Solve for x
    x = 20,167,736,405.84/161,900.20
  6. Step 6: Final answer
    x = 124,568.94

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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.