Home / 159,919.24-220,692-88,303.81

Finding the Fourth Proportional to 159,919.24, 220,692 and 88,303.81

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Solution

The fourth proportional to 159,919.24, 220,692 and 88,303.81 is: 121,861.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,919.24 : 220,692 = 88,303.81 : x
  2. Step 2: Convert to fraction form
    159,919.24/220,692 = 88,303.81/x
  3. Step 3: Cross multiply
    159,919.24x = 220,692 × 88,303.81
  4. Step 4: Simplify right side
    159,919.24x = 19,487,944,436.52
  5. Step 5: Solve for x
    x = 19,487,944,436.52/159,919.24
  6. Step 6: Final answer
    x = 121,861.16

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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.