Home / 161,208.87-222,399.18-100,674.42

Finding the Fourth Proportional to 161,208.87, 222,399.18 and 100,674.42

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Solution

The fourth proportional to 161,208.87, 222,399.18 and 100,674.42 is: 138,887.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,208.87 : 222,399.18 = 100,674.42 : x
  2. Step 2: Convert to fraction form
    161,208.87/222,399.18 = 100,674.42/x
  3. Step 3: Cross multiply
    161,208.87x = 222,399.18 × 100,674.42
  4. Step 4: Simplify right side
    161,208.87x = 22,389,908,454.98
  5. Step 5: Solve for x
    x = 22,389,908,454.98/161,208.87
  6. Step 6: Final answer
    x = 138,887.57

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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.