Home / 144,647.47-199,612.20-80,986.33

Finding the Fourth Proportional to 144,647.47, 199,612.20 and 80,986.33

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Solution

The fourth proportional to 144,647.47, 199,612.20 and 80,986.33 is: 111,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,647.47 : 199,612.20 = 80,986.33 : x
  2. Step 2: Convert to fraction form
    144,647.47/199,612.20 = 80,986.33/x
  3. Step 3: Cross multiply
    144,647.47x = 199,612.20 × 80,986.33
  4. Step 4: Simplify right side
    144,647.47x = 16,165,859,598.89
  5. Step 5: Solve for x
    x = 16,165,859,598.89/144,647.47
  6. Step 6: Final answer
    x = 111,760.40

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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.