Home / 225,948.34-311,814.45-123,973.78

Finding the Fourth Proportional to 225,948.34, 311,814.45 and 123,973.78

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Solution

The fourth proportional to 225,948.34, 311,814.45 and 123,973.78 is: 171,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,948.34 : 311,814.45 = 123,973.78 : x
  2. Step 2: Convert to fraction form
    225,948.34/311,814.45 = 123,973.78/x
  3. Step 3: Cross multiply
    225,948.34x = 311,814.45 × 123,973.78
  4. Step 4: Simplify right side
    225,948.34x = 38,656,815,914.76
  5. Step 5: Solve for x
    x = 38,656,815,914.76/225,948.34
  6. Step 6: Final answer
    x = 171,086.96

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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.