Home / 131,471.28-197,127.93-51,413.88

Finding the Fourth Proportional to 131,471.28, 197,127.93 and 51,413.88

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Solution

The fourth proportional to 131,471.28, 197,127.93 and 51,413.88 is: 77,089.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471.28 : 197,127.93 = 51,413.88 : x
  2. Step 2: Convert to fraction form
    131,471.28/197,127.93 = 51,413.88/x
  3. Step 3: Cross multiply
    131,471.28x = 197,127.93 × 51,413.88
  4. Step 4: Simplify right side
    131,471.28x = 10,135,111,737.67
  5. Step 5: Solve for x
    x = 10,135,111,737.67/131,471.28
  6. Step 6: Final answer
    x = 77,089.93

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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.