Home / 144,305.18-199,012.20-90,595.20

Finding the Fourth Proportional to 144,305.18, 199,012.20 and 90,595.20

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Solution

The fourth proportional to 144,305.18, 199,012.20 and 90,595.20 is: 124,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,305.18 : 199,012.20 = 90,595.20 : x
  2. Step 2: Convert to fraction form
    144,305.18/199,012.20 = 90,595.20/x
  3. Step 3: Cross multiply
    144,305.18x = 199,012.20 × 90,595.20
  4. Step 4: Simplify right side
    144,305.18x = 18,029,550,061.44
  5. Step 5: Solve for x
    x = 18,029,550,061.44/144,305.18
  6. Step 6: Final answer
    x = 124,940.43

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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.