Home / 118,758.52-178,121.31-30,006.55

Finding the Fourth Proportional to 118,758.52, 178,121.31 and 30,006.55

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Solution

The fourth proportional to 118,758.52, 178,121.31 and 30,006.55 is: 45,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.52 : 178,121.31 = 30,006.55 : x
  2. Step 2: Convert to fraction form
    118,758.52/178,121.31 = 30,006.55/x
  3. Step 3: Cross multiply
    118,758.52x = 178,121.31 × 30,006.55
  4. Step 4: Simplify right side
    118,758.52x = 5,344,805,994.58
  5. Step 5: Solve for x
    x = 5,344,805,994.58/118,758.52
  6. Step 6: Final answer
    x = 45,005.66

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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.