Home / 220,756.12-304,669.38-123,975.88

Finding the Fourth Proportional to 220,756.12, 304,669.38 and 123,975.88

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Solution

The fourth proportional to 220,756.12, 304,669.38 and 123,975.88 is: 171,101.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,756.12 : 304,669.38 = 123,975.88 : x
  2. Step 2: Convert to fraction form
    220,756.12/304,669.38 = 123,975.88/x
  3. Step 3: Cross multiply
    220,756.12x = 304,669.38 × 123,975.88
  4. Step 4: Simplify right side
    220,756.12x = 37,771,654,494.55
  5. Step 5: Solve for x
    x = 37,771,654,494.55/220,756.12
  6. Step 6: Final answer
    x = 171,101.28

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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.