Home / 137,110.20-205,730.10-58,291.80

Finding the Fourth Proportional to 137,110.20, 205,730.10 and 58,291.80

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Solution

The fourth proportional to 137,110.20, 205,730.10 and 58,291.80 is: 87,465.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,110.20 : 205,730.10 = 58,291.80 : x
  2. Step 2: Convert to fraction form
    137,110.20/205,730.10 = 58,291.80/x
  3. Step 3: Cross multiply
    137,110.20x = 205,730.10 × 58,291.80
  4. Step 4: Simplify right side
    137,110.20x = 11,992,377,843.18
  5. Step 5: Solve for x
    x = 11,992,377,843.18/137,110.20
  6. Step 6: Final answer
    x = 87,465.25

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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.