Home / 143,927.54-215,784.68-68,976.32

Finding the Fourth Proportional to 143,927.54, 215,784.68 and 68,976.32

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Solution

The fourth proportional to 143,927.54, 215,784.68 and 68,976.32 is: 103,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,927.54 : 215,784.68 = 68,976.32 : x
  2. Step 2: Convert to fraction form
    143,927.54/215,784.68 = 68,976.32/x
  3. Step 3: Cross multiply
    143,927.54x = 215,784.68 × 68,976.32
  4. Step 4: Simplify right side
    143,927.54x = 14,884,032,793.90
  5. Step 5: Solve for x
    x = 14,884,032,793.90/143,927.54
  6. Step 6: Final answer
    x = 103,413.38

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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.