Home / 118,268.78-177,431.51-39,383.72

Finding the Fourth Proportional to 118,268.78, 177,431.51 and 39,383.72

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Solution

The fourth proportional to 118,268.78, 177,431.51 and 39,383.72 is: 59,085.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,268.78 : 177,431.51 = 39,383.72 : x
  2. Step 2: Convert to fraction form
    118,268.78/177,431.51 = 39,383.72/x
  3. Step 3: Cross multiply
    118,268.78x = 177,431.51 × 39,383.72
  4. Step 4: Simplify right side
    118,268.78x = 6,987,912,120.32
  5. Step 5: Solve for x
    x = 6,987,912,120.32/118,268.78
  6. Step 6: Final answer
    x = 59,085.01

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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.