Home / 144,330.32-199,151.52-80,668.64

Finding the Fourth Proportional to 144,330.32, 199,151.52 and 80,668.64

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Solution

The fourth proportional to 144,330.32, 199,151.52 and 80,668.64 is: 111,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,330.32 : 199,151.52 = 80,668.64 : x
  2. Step 2: Convert to fraction form
    144,330.32/199,151.52 = 80,668.64/x
  3. Step 3: Cross multiply
    144,330.32x = 199,151.52 × 80,668.64
  4. Step 4: Simplify right side
    144,330.32x = 16,065,282,272.33
  5. Step 5: Solve for x
    x = 16,065,282,272.33/144,330.32
  6. Step 6: Final answer
    x = 111,309.13

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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.