Home / 156,413.72-215,851.08-84,793.68

Finding the Fourth Proportional to 156,413.72, 215,851.08 and 84,793.68

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Solution

The fourth proportional to 156,413.72, 215,851.08 and 84,793.68 is: 117,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,413.72 : 215,851.08 = 84,793.68 : x
  2. Step 2: Convert to fraction form
    156,413.72/215,851.08 = 84,793.68/x
  3. Step 3: Cross multiply
    156,413.72x = 215,851.08 × 84,793.68
  4. Step 4: Simplify right side
    156,413.72x = 18,302,807,405.17
  5. Step 5: Solve for x
    x = 18,302,807,405.17/156,413.72
  6. Step 6: Final answer
    x = 117,015.36

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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.