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Finding the Fourth Proportional to 144,599.88, 199,555.44 and 90,865.08

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Solution

The fourth proportional to 144,599.88, 199,555.44 and 90,865.08 is: 125,398.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,599.88 : 199,555.44 = 90,865.08 : x
  2. Step 2: Convert to fraction form
    144,599.88/199,555.44 = 90,865.08/x
  3. Step 3: Cross multiply
    144,599.88x = 199,555.44 × 90,865.08
  4. Step 4: Simplify right side
    144,599.88x = 18,132,621,020.04
  5. Step 5: Solve for x
    x = 18,132,621,020.04/144,599.88
  6. Step 6: Final answer
    x = 125,398.59

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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.