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Finding the Fourth Proportional to 144,357.54, 199,213.66 and 80,695.28

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Solution

The fourth proportional to 144,357.54, 199,213.66 and 80,695.28 is: 111,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,357.54 : 199,213.66 = 80,695.28 : x
  2. Step 2: Convert to fraction form
    144,357.54/199,213.66 = 80,695.28/x
  3. Step 3: Cross multiply
    144,357.54x = 199,213.66 × 80,695.28
  4. Step 4: Simplify right side
    144,357.54x = 16,075,602,073.52
  5. Step 5: Solve for x
    x = 16,075,602,073.52/144,357.54
  6. Step 6: Final answer
    x = 111,359.63

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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.