Home / 144,481.95-199,416.21-87,911.55

Finding the Fourth Proportional to 144,481.95, 199,416.21 and 87,911.55

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Solution

The fourth proportional to 144,481.95, 199,416.21 and 87,911.55 is: 121,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,481.95 : 199,416.21 = 87,911.55 : x
  2. Step 2: Convert to fraction form
    144,481.95/199,416.21 = 87,911.55/x
  3. Step 3: Cross multiply
    144,481.95x = 199,416.21 × 87,911.55
  4. Step 4: Simplify right side
    144,481.95x = 17,530,988,116.23
  5. Step 5: Solve for x
    x = 17,530,988,116.23/144,481.95
  6. Step 6: Final answer
    x = 121,336.87

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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.