Home / 144,103.08-198,882.24-80,445

Finding the Fourth Proportional to 144,103.08, 198,882.24 and 80,445

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Solution

The fourth proportional to 144,103.08, 198,882.24 and 80,445 is: 111,025.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,103.08 : 198,882.24 = 80,445 : x
  2. Step 2: Convert to fraction form
    144,103.08/198,882.24 = 80,445/x
  3. Step 3: Cross multiply
    144,103.08x = 198,882.24 × 80,445
  4. Step 4: Simplify right side
    144,103.08x = 15,999,081,796.80
  5. Step 5: Solve for x
    x = 15,999,081,796.80/144,103.08
  6. Step 6: Final answer
    x = 111,025.26

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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.