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Finding the Fourth Proportional to 155,118.82, 232,679.22 and 84,959.86

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Solution

The fourth proportional to 155,118.82, 232,679.22 and 84,959.86 is: 127,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118.82 : 232,679.22 = 84,959.86 : x
  2. Step 2: Convert to fraction form
    155,118.82/232,679.22 = 84,959.86/x
  3. Step 3: Cross multiply
    155,118.82x = 232,679.22 × 84,959.86
  4. Step 4: Simplify right side
    155,118.82x = 19,768,393,956.11
  5. Step 5: Solve for x
    x = 19,768,393,956.11/155,118.82
  6. Step 6: Final answer
    x = 127,440.33

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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.