Home / 102,688.20-141,650.60-61,823.92

Finding the Fourth Proportional to 102,688.20, 141,650.60 and 61,823.92

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Solution

The fourth proportional to 102,688.20, 141,650.60 and 61,823.92 is: 85,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,688.20 : 141,650.60 = 61,823.92 : x
  2. Step 2: Convert to fraction form
    102,688.20/141,650.60 = 61,823.92/x
  3. Step 3: Cross multiply
    102,688.20x = 141,650.60 × 61,823.92
  4. Step 4: Simplify right side
    102,688.20x = 8,757,395,362.35
  5. Step 5: Solve for x
    x = 8,757,395,362.35/102,688.20
  6. Step 6: Final answer
    x = 85,281.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.