Home / 155,105.28-232,727.04-81,216

Finding the Fourth Proportional to 155,105.28, 232,727.04 and 81,216

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Solution

The fourth proportional to 155,105.28, 232,727.04 and 81,216 is: 121,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,105.28 : 232,727.04 = 81,216 : x
  2. Step 2: Convert to fraction form
    155,105.28/232,727.04 = 81,216/x
  3. Step 3: Cross multiply
    155,105.28x = 232,727.04 × 81,216
  4. Step 4: Simplify right side
    155,105.28x = 18,901,159,280.64
  5. Step 5: Solve for x
    x = 18,901,159,280.64/155,105.28
  6. Step 6: Final answer
    x = 121,860.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.