Home / 144,722.36-199,740.84-99,363.20

Finding the Fourth Proportional to 144,722.36, 199,740.84 and 99,363.20

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Solution

The fourth proportional to 144,722.36, 199,740.84 and 99,363.20 is: 137,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,722.36 : 199,740.84 = 99,363.20 : x
  2. Step 2: Convert to fraction form
    144,722.36/199,740.84 = 99,363.20/x
  3. Step 3: Cross multiply
    144,722.36x = 199,740.84 × 99,363.20
  4. Step 4: Simplify right side
    144,722.36x = 19,846,889,033.09
  5. Step 5: Solve for x
    x = 19,846,889,033.09/144,722.36
  6. Step 6: Final answer
    x = 137,137.68

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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.