Home / 156,972.45-235,513.35-68,289.60

Finding the Fourth Proportional to 156,972.45, 235,513.35 and 68,289.60

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Solution

The fourth proportional to 156,972.45, 235,513.35 and 68,289.60 is: 102,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.45 : 235,513.35 = 68,289.60 : x
  2. Step 2: Convert to fraction form
    156,972.45/235,513.35 = 68,289.60/x
  3. Step 3: Cross multiply
    156,972.45x = 235,513.35 × 68,289.60
  4. Step 4: Simplify right side
    156,972.45x = 16,083,112,466.16
  5. Step 5: Solve for x
    x = 16,083,112,466.16/156,972.45
  6. Step 6: Final answer
    x = 102,458.19

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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.