Home / 100,094.04-138,123.70-57,067.52

Finding the Fourth Proportional to 100,094.04, 138,123.70 and 57,067.52

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Solution

The fourth proportional to 100,094.04, 138,123.70 and 57,067.52 is: 78,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,094.04 : 138,123.70 = 57,067.52 : x
  2. Step 2: Convert to fraction form
    100,094.04/138,123.70 = 57,067.52/x
  3. Step 3: Cross multiply
    100,094.04x = 138,123.70 × 57,067.52
  4. Step 4: Simplify right side
    100,094.04x = 7,882,376,178.94
  5. Step 5: Solve for x
    x = 7,882,376,178.94/100,094.04
  6. Step 6: Final answer
    x = 78,749.71

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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.