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Finding the Fourth Proportional to 207,737.90, 311,563.65 and 89,413.10

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Solution

The fourth proportional to 207,737.90, 311,563.65 and 89,413.10 is: 134,101.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,737.90 : 311,563.65 = 89,413.10 : x
  2. Step 2: Convert to fraction form
    207,737.90/311,563.65 = 89,413.10/x
  3. Step 3: Cross multiply
    207,737.90x = 311,563.65 × 89,413.10
  4. Step 4: Simplify right side
    207,737.90x = 27,857,871,793.82
  5. Step 5: Solve for x
    x = 27,857,871,793.82/207,737.90
  6. Step 6: Final answer
    x = 134,101.06

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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.