Home / 81,803.16-122,023.38-80,448.44

Finding the Fourth Proportional to 81,803.16, 122,023.38 and 80,448.44

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Solution

The fourth proportional to 81,803.16, 122,023.38 and 80,448.44 is: 120,002.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,803.16 : 122,023.38 = 80,448.44 : x
  2. Step 2: Convert to fraction form
    81,803.16/122,023.38 = 80,448.44/x
  3. Step 3: Cross multiply
    81,803.16x = 122,023.38 × 80,448.44
  4. Step 4: Simplify right side
    81,803.16x = 9,816,590,564.53
  5. Step 5: Solve for x
    x = 9,816,590,564.53/81,803.16
  6. Step 6: Final answer
    x = 120,002.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.