Home / 137,440.02-189,664.02-80,855.04

Finding the Fourth Proportional to 137,440.02, 189,664.02 and 80,855.04

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Solution

The fourth proportional to 137,440.02, 189,664.02 and 80,855.04 is: 111,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,440.02 : 189,664.02 = 80,855.04 : x
  2. Step 2: Convert to fraction form
    137,440.02/189,664.02 = 80,855.04/x
  3. Step 3: Cross multiply
    137,440.02x = 189,664.02 × 80,855.04
  4. Step 4: Simplify right side
    137,440.02x = 15,335,291,923.66
  5. Step 5: Solve for x
    x = 15,335,291,923.66/137,440.02
  6. Step 6: Final answer
    x = 111,578.07

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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.