Home / 155,165.28-232,817.04-81,276

Finding the Fourth Proportional to 155,165.28, 232,817.04 and 81,276

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Solution

The fourth proportional to 155,165.28, 232,817.04 and 81,276 is: 121,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,165.28 : 232,817.04 = 81,276 : x
  2. Step 2: Convert to fraction form
    155,165.28/232,817.04 = 81,276/x
  3. Step 3: Cross multiply
    155,165.28x = 232,817.04 × 81,276
  4. Step 4: Simplify right side
    155,165.28x = 18,922,437,743.04
  5. Step 5: Solve for x
    x = 18,922,437,743.04/155,165.28
  6. Step 6: Final answer
    x = 121,950.21

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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.