Home / 223,721.20-308,735.16-123,119.20

Finding the Fourth Proportional to 223,721.20, 308,735.16 and 123,119.20

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Solution

The fourth proportional to 223,721.20, 308,735.16 and 123,119.20 is: 169,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,721.20 : 308,735.16 = 123,119.20 : x
  2. Step 2: Convert to fraction form
    223,721.20/308,735.16 = 123,119.20/x
  3. Step 3: Cross multiply
    223,721.20x = 308,735.16 × 123,119.20
  4. Step 4: Simplify right side
    223,721.20x = 38,011,224,367.40
  5. Step 5: Solve for x
    x = 38,011,224,367.40/223,721.20
  6. Step 6: Final answer
    x = 169,904.44

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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.