Home / 144,686.39-199,668.65-80,157.53

Finding the Fourth Proportional to 144,686.39, 199,668.65 and 80,157.53

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Solution

The fourth proportional to 144,686.39, 199,668.65 and 80,157.53 is: 110,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,686.39 : 199,668.65 = 80,157.53 : x
  2. Step 2: Convert to fraction form
    144,686.39/199,668.65 = 80,157.53/x
  3. Step 3: Cross multiply
    144,686.39x = 199,668.65 × 80,157.53
  4. Step 4: Simplify right side
    144,686.39x = 16,004,945,900.82
  5. Step 5: Solve for x
    x = 16,004,945,900.82/144,686.39
  6. Step 6: Final answer
    x = 110,618.19

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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.