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Finding the Fourth Proportional to 159,859.71, 220,622.58 and 137,273.47

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Solution

The fourth proportional to 159,859.71, 220,622.58 and 137,273.47 is: 189,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,859.71 : 220,622.58 = 137,273.47 : x
  2. Step 2: Convert to fraction form
    159,859.71/220,622.58 = 137,273.47/x
  3. Step 3: Cross multiply
    159,859.71x = 220,622.58 × 137,273.47
  4. Step 4: Simplify right side
    159,859.71x = 30,285,627,116.95
  5. Step 5: Solve for x
    x = 30,285,627,116.95/159,859.71
  6. Step 6: Final answer
    x = 189,451.28

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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.