Home / 131,843.76-181,943.34-71,413.02

Finding the Fourth Proportional to 131,843.76, 181,943.34 and 71,413.02

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Solution

The fourth proportional to 131,843.76, 181,943.34 and 71,413.02 is: 98,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,843.76 : 181,943.34 = 71,413.02 : x
  2. Step 2: Convert to fraction form
    131,843.76/181,943.34 = 71,413.02/x
  3. Step 3: Cross multiply
    131,843.76x = 181,943.34 × 71,413.02
  4. Step 4: Simplify right side
    131,843.76x = 12,993,123,378.29
  5. Step 5: Solve for x
    x = 12,993,123,378.29/131,843.76
  6. Step 6: Final answer
    x = 98,549.40

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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.