Home / 144,299.88-199,130.12-80,638.20

Finding the Fourth Proportional to 144,299.88, 199,130.12 and 80,638.20

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Solution

The fourth proportional to 144,299.88, 199,130.12 and 80,638.20 is: 111,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,299.88 : 199,130.12 = 80,638.20 : x
  2. Step 2: Convert to fraction form
    144,299.88/199,130.12 = 80,638.20/x
  3. Step 3: Cross multiply
    144,299.88x = 199,130.12 × 80,638.20
  4. Step 4: Simplify right side
    144,299.88x = 16,057,494,442.58
  5. Step 5: Solve for x
    x = 16,057,494,442.58/144,299.88
  6. Step 6: Final answer
    x = 111,278.64

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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.