Home / 158,836.08-219,194-87,220.72

Finding the Fourth Proportional to 158,836.08, 219,194 and 87,220.72

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Solution

The fourth proportional to 158,836.08, 219,194 and 87,220.72 is: 120,364.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,836.08 : 219,194 = 87,220.72 : x
  2. Step 2: Convert to fraction form
    158,836.08/219,194 = 87,220.72/x
  3. Step 3: Cross multiply
    158,836.08x = 219,194 × 87,220.72
  4. Step 4: Simplify right side
    158,836.08x = 19,118,258,499.68
  5. Step 5: Solve for x
    x = 19,118,258,499.68/158,836.08
  6. Step 6: Final answer
    x = 120,364.71

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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.