Home / 131,525.78-181,505.22-74,937.56

Finding the Fourth Proportional to 131,525.78, 181,505.22 and 74,937.56

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Solution

The fourth proportional to 131,525.78, 181,505.22 and 74,937.56 is: 103,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,525.78 : 181,505.22 = 74,937.56 : x
  2. Step 2: Convert to fraction form
    131,525.78/181,505.22 = 74,937.56/x
  3. Step 3: Cross multiply
    131,525.78x = 181,505.22 × 74,937.56
  4. Step 4: Simplify right side
    131,525.78x = 13,601,558,314.06
  5. Step 5: Solve for x
    x = 13,601,558,314.06/131,525.78
  6. Step 6: Final answer
    x = 103,413.63

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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.