Home / 144,290.11-199,116.53-80,628.43

Finding the Fourth Proportional to 144,290.11, 199,116.53 and 80,628.43

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Solution

The fourth proportional to 144,290.11, 199,116.53 and 80,628.43 is: 111,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,290.11 : 199,116.53 = 80,628.43 : x
  2. Step 2: Convert to fraction form
    144,290.11/199,116.53 = 80,628.43/x
  3. Step 3: Cross multiply
    144,290.11x = 199,116.53 × 80,628.43
  4. Step 4: Simplify right side
    144,290.11x = 16,054,452,602.37
  5. Step 5: Solve for x
    x = 16,054,452,602.37/144,290.11
  6. Step 6: Final answer
    x = 111,265.10

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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.