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Finding the Fourth Proportional to 155,468.84, 233,203.25 and 85,791.02

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Solution

The fourth proportional to 155,468.84, 233,203.25 and 85,791.02 is: 128,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,468.84 : 233,203.25 = 85,791.02 : x
  2. Step 2: Convert to fraction form
    155,468.84/233,203.25 = 85,791.02/x
  3. Step 3: Cross multiply
    155,468.84x = 233,203.25 × 85,791.02
  4. Step 4: Simplify right side
    155,468.84x = 20,006,743,733.28
  5. Step 5: Solve for x
    x = 20,006,743,733.28/155,468.84
  6. Step 6: Final answer
    x = 128,686.52

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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.