Home / 137,931.39-206,058.60-87,608.52

Finding the Fourth Proportional to 137,931.39, 206,058.60 and 87,608.52

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Solution

The fourth proportional to 137,931.39, 206,058.60 and 87,608.52 is: 130,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,931.39 : 206,058.60 = 87,608.52 : x
  2. Step 2: Convert to fraction form
    137,931.39/206,058.60 = 87,608.52/x
  3. Step 3: Cross multiply
    137,931.39x = 206,058.60 × 87,608.52
  4. Step 4: Simplify right side
    137,931.39x = 18,052,488,979.27
  5. Step 5: Solve for x
    x = 18,052,488,979.27/137,931.39
  6. Step 6: Final answer
    x = 130,880.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.