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Finding the Fourth Proportional to 144,574.88, 199,513.30 and 80,912.67

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Solution

The fourth proportional to 144,574.88, 199,513.30 and 80,912.67 is: 111,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,574.88 : 199,513.30 = 80,912.67 : x
  2. Step 2: Convert to fraction form
    144,574.88/199,513.30 = 80,912.67/x
  3. Step 3: Cross multiply
    144,574.88x = 199,513.30 × 80,912.67
  4. Step 4: Simplify right side
    144,574.88x = 16,143,153,803.51
  5. Step 5: Solve for x
    x = 16,143,153,803.51/144,574.88
  6. Step 6: Final answer
    x = 111,659.47

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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.