Home / 158,738.30-219,065.16-87,120.92

Finding the Fourth Proportional to 158,738.30, 219,065.16 and 87,120.92

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Solution

The fourth proportional to 158,738.30, 219,065.16 and 87,120.92 is: 120,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,738.30 : 219,065.16 = 87,120.92 : x
  2. Step 2: Convert to fraction form
    158,738.30/219,065.16 = 87,120.92/x
  3. Step 3: Cross multiply
    158,738.30x = 219,065.16 × 87,120.92
  4. Step 4: Simplify right side
    158,738.30x = 19,085,158,279.15
  5. Step 5: Solve for x
    x = 19,085,158,279.15/158,738.30
  6. Step 6: Final answer
    x = 120,230.33

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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.