Home / 156,640.03-235,010.65-72,455.42

Finding the Fourth Proportional to 156,640.03, 235,010.65 and 72,455.42

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Solution

The fourth proportional to 156,640.03, 235,010.65 and 72,455.42 is: 108,706.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,640.03 : 235,010.65 = 72,455.42 : x
  2. Step 2: Convert to fraction form
    156,640.03/235,010.65 = 72,455.42/x
  3. Step 3: Cross multiply
    156,640.03x = 235,010.65 × 72,455.42
  4. Step 4: Simplify right side
    156,640.03x = 17,027,795,168.15
  5. Step 5: Solve for x
    x = 17,027,795,168.15/156,640.03
  6. Step 6: Final answer
    x = 108,706.53

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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.