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Finding the Fourth Proportional to 118,837.78, 178,254.77 and 28,881.22

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Solution

The fourth proportional to 118,837.78, 178,254.77 and 28,881.22 is: 43,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,837.78 : 178,254.77 = 28,881.22 : x
  2. Step 2: Convert to fraction form
    118,837.78/178,254.77 = 28,881.22/x
  3. Step 3: Cross multiply
    118,837.78x = 178,254.77 × 28,881.22
  4. Step 4: Simplify right side
    118,837.78x = 5,148,215,228.42
  5. Step 5: Solve for x
    x = 5,148,215,228.42/118,837.78
  6. Step 6: Final answer
    x = 43,321.37

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1.5x scale

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.