Home / 137,346.21-205,650.18-87,154.56

Finding the Fourth Proportional to 137,346.21, 205,650.18 and 87,154.56

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Solution

The fourth proportional to 137,346.21, 205,650.18 and 87,154.56 is: 130,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,346.21 : 205,650.18 = 87,154.56 : x
  2. Step 2: Convert to fraction form
    137,346.21/205,650.18 = 87,154.56/x
  3. Step 3: Cross multiply
    137,346.21x = 205,650.18 × 87,154.56
  4. Step 4: Simplify right side
    137,346.21x = 17,923,350,951.82
  5. Step 5: Solve for x
    x = 17,923,350,951.82/137,346.21
  6. Step 6: Final answer
    x = 130,497.60

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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.