Home / 144,280.42-199,103.16-80,618.74

Finding the Fourth Proportional to 144,280.42, 199,103.16 and 80,618.74

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Solution

The fourth proportional to 144,280.42, 199,103.16 and 80,618.74 is: 111,251.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,280.42 : 199,103.16 = 80,618.74 : x
  2. Step 2: Convert to fraction form
    144,280.42/199,103.16 = 80,618.74/x
  3. Step 3: Cross multiply
    144,280.42x = 199,103.16 × 80,618.74
  4. Step 4: Simplify right side
    144,280.42x = 16,051,445,889.22
  5. Step 5: Solve for x
    x = 16,051,445,889.22/144,280.42
  6. Step 6: Final answer
    x = 111,251.73

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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.