Home / 151,934.70-228,047.85-77,139.30

Finding the Fourth Proportional to 151,934.70, 228,047.85 and 77,139.30

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Solution

The fourth proportional to 151,934.70, 228,047.85 and 77,139.30 is: 115,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,934.70 : 228,047.85 = 77,139.30 : x
  2. Step 2: Convert to fraction form
    151,934.70/228,047.85 = 77,139.30/x
  3. Step 3: Cross multiply
    151,934.70x = 228,047.85 × 77,139.30
  4. Step 4: Simplify right side
    151,934.70x = 17,591,451,515.51
  5. Step 5: Solve for x
    x = 17,591,451,515.51/151,934.70
  6. Step 6: Final answer
    x = 115,782.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.