Home / 159,763.73-220,470.26-88,143.75

Finding the Fourth Proportional to 159,763.73, 220,470.26 and 88,143.75

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Solution

The fourth proportional to 159,763.73, 220,470.26 and 88,143.75 is: 121,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,763.73 : 220,470.26 = 88,143.75 : x
  2. Step 2: Convert to fraction form
    159,763.73/220,470.26 = 88,143.75/x
  3. Step 3: Cross multiply
    159,763.73x = 220,470.26 × 88,143.75
  4. Step 4: Simplify right side
    159,763.73x = 19,433,075,039.16
  5. Step 5: Solve for x
    x = 19,433,075,039.16/159,763.73
  6. Step 6: Final answer
    x = 121,636.34

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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.