Home / 118,753.52-178,135.74-66,123.36

Finding the Fourth Proportional to 118,753.52, 178,135.74 and 66,123.36

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Solution

The fourth proportional to 118,753.52, 178,135.74 and 66,123.36 is: 99,188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,753.52 : 178,135.74 = 66,123.36 : x
  2. Step 2: Convert to fraction form
    118,753.52/178,135.74 = 66,123.36/x
  3. Step 3: Cross multiply
    118,753.52x = 178,135.74 × 66,123.36
  4. Step 4: Simplify right side
    118,753.52x = 11,778,933,664.89
  5. Step 5: Solve for x
    x = 11,778,933,664.89/118,753.52
  6. Step 6: Final answer
    x = 99,188.08

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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.