Home / 131,413.27-181,352.58-77,707.54

Finding the Fourth Proportional to 131,413.27, 181,352.58 and 77,707.54

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Solution

The fourth proportional to 131,413.27, 181,352.58 and 77,707.54 is: 107,237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,413.27 : 181,352.58 = 77,707.54 : x
  2. Step 2: Convert to fraction form
    131,413.27/181,352.58 = 77,707.54/x
  3. Step 3: Cross multiply
    131,413.27x = 181,352.58 × 77,707.54
  4. Step 4: Simplify right side
    131,413.27x = 14,092,462,864.45
  5. Step 5: Solve for x
    x = 14,092,462,864.45/131,413.27
  6. Step 6: Final answer
    x = 107,237.75

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1.5x scale

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.