Home / 156,063.76-215,368.73-88,083.60

Finding the Fourth Proportional to 156,063.76, 215,368.73 and 88,083.60

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Solution

The fourth proportional to 156,063.76, 215,368.73 and 88,083.60 is: 121,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,063.76 : 215,368.73 = 88,083.60 : x
  2. Step 2: Convert to fraction form
    156,063.76/215,368.73 = 88,083.60/x
  3. Step 3: Cross multiply
    156,063.76x = 215,368.73 × 88,083.60
  4. Step 4: Simplify right side
    156,063.76x = 18,970,452,148.09
  5. Step 5: Solve for x
    x = 18,970,452,148.09/156,063.76
  6. Step 6: Final answer
    x = 121,555.78

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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.