Home / 118,844.74-178,211.40-68,939.02

Finding the Fourth Proportional to 118,844.74, 178,211.40 and 68,939.02

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Solution

The fourth proportional to 118,844.74, 178,211.40 and 68,939.02 is: 103,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,844.74 : 178,211.40 = 68,939.02 : x
  2. Step 2: Convert to fraction form
    118,844.74/178,211.40 = 68,939.02/x
  3. Step 3: Cross multiply
    118,844.74x = 178,211.40 × 68,939.02
  4. Step 4: Simplify right side
    118,844.74x = 12,285,719,268.83
  5. Step 5: Solve for x
    x = 12,285,719,268.83/118,844.74
  6. Step 6: Final answer
    x = 103,376.21

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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.