Home / 144,377.12-199,244.80-80,717.60

Finding the Fourth Proportional to 144,377.12, 199,244.80 and 80,717.60

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Solution

The fourth proportional to 144,377.12, 199,244.80 and 80,717.60 is: 111,392.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,377.12 : 199,244.80 = 80,717.60 : x
  2. Step 2: Convert to fraction form
    144,377.12/199,244.80 = 80,717.60/x
  3. Step 3: Cross multiply
    144,377.12x = 199,244.80 × 80,717.60
  4. Step 4: Simplify right side
    144,377.12x = 16,082,562,068.48
  5. Step 5: Solve for x
    x = 16,082,562,068.48/144,377.12
  6. Step 6: Final answer
    x = 111,392.73

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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.