Home / 72,518.31-100,083.60-70,193.25

Finding the Fourth Proportional to 72,518.31, 100,083.60 and 70,193.25

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Solution

The fourth proportional to 72,518.31, 100,083.60 and 70,193.25 is: 96,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,518.31 : 100,083.60 = 70,193.25 : x
  2. Step 2: Convert to fraction form
    72,518.31/100,083.60 = 70,193.25/x
  3. Step 3: Cross multiply
    72,518.31x = 100,083.60 × 70,193.25
  4. Step 4: Simplify right side
    72,518.31x = 7,025,193,155.70
  5. Step 5: Solve for x
    x = 7,025,193,155.70/72,518.31
  6. Step 6: Final answer
    x = 96,874.75

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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.