Home / 158,722.49-219,043.34-87,105.06

Finding the Fourth Proportional to 158,722.49, 219,043.34 and 87,105.06

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Solution

The fourth proportional to 158,722.49, 219,043.34 and 87,105.06 is: 120,208.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,722.49 : 219,043.34 = 87,105.06 : x
  2. Step 2: Convert to fraction form
    158,722.49/219,043.34 = 87,105.06/x
  3. Step 3: Cross multiply
    158,722.49x = 219,043.34 × 87,105.06
  4. Step 4: Simplify right side
    158,722.49x = 19,079,783,273.30
  5. Step 5: Solve for x
    x = 19,079,783,273.30/158,722.49
  6. Step 6: Final answer
    x = 120,208.44

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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.