Home / 137,344.21-205,647.19-87,152.56

Finding the Fourth Proportional to 137,344.21, 205,647.19 and 87,152.56

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Solution

The fourth proportional to 137,344.21, 205,647.19 and 87,152.56 is: 130,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,344.21 : 205,647.19 = 87,152.56 : x
  2. Step 2: Convert to fraction form
    137,344.21/205,647.19 = 87,152.56/x
  3. Step 3: Cross multiply
    137,344.21x = 205,647.19 × 87,152.56
  4. Step 4: Simplify right side
    137,344.21x = 17,922,678,333.31
  5. Step 5: Solve for x
    x = 17,922,678,333.31/137,344.21
  6. Step 6: Final answer
    x = 130,494.61

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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.