Home / 144,303.82-199,143.51-80,641.75

Finding the Fourth Proportional to 144,303.82, 199,143.51 and 80,641.75

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Solution

The fourth proportional to 144,303.82, 199,143.51 and 80,641.75 is: 111,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,303.82 : 199,143.51 = 80,641.75 : x
  2. Step 2: Convert to fraction form
    144,303.82/199,143.51 = 80,641.75/x
  3. Step 3: Cross multiply
    144,303.82x = 199,143.51 × 80,641.75
  4. Step 4: Simplify right side
    144,303.82x = 16,059,281,147.54
  5. Step 5: Solve for x
    x = 16,059,281,147.54/144,303.82
  6. Step 6: Final answer
    x = 111,287.98

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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.