Home / 131,436.48-181,336.80-74,833.92

Finding the Fourth Proportional to 131,436.48, 181,336.80 and 74,833.92

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Solution

The fourth proportional to 131,436.48, 181,336.80 and 74,833.92 is: 103,244.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,436.48 : 181,336.80 = 74,833.92 : x
  2. Step 2: Convert to fraction form
    131,436.48/181,336.80 = 74,833.92/x
  3. Step 3: Cross multiply
    131,436.48x = 181,336.80 × 74,833.92
  4. Step 4: Simplify right side
    131,436.48x = 13,570,143,584.26
  5. Step 5: Solve for x
    x = 13,570,143,584.26/131,436.48
  6. Step 6: Final answer
    x = 103,244.88

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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.