Home / 88,173.77-121,704.73-72,296.15

Finding the Fourth Proportional to 88,173.77, 121,704.73 and 72,296.15

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Solution

The fourth proportional to 88,173.77, 121,704.73 and 72,296.15 is: 99,789.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,173.77 : 121,704.73 = 72,296.15 : x
  2. Step 2: Convert to fraction form
    88,173.77/121,704.73 = 72,296.15/x
  3. Step 3: Cross multiply
    88,173.77x = 121,704.73 × 72,296.15
  4. Step 4: Simplify right side
    88,173.77x = 8,798,782,626.53
  5. Step 5: Solve for x
    x = 8,798,782,626.53/88,173.77
  6. Step 6: Final answer
    x = 99,789.12

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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.