Home / 131,374.41-181,296.88-74,785.78

Finding the Fourth Proportional to 131,374.41, 181,296.88 and 74,785.78

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Solution

The fourth proportional to 131,374.41, 181,296.88 and 74,785.78 is: 103,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,374.41 : 181,296.88 = 74,785.78 : x
  2. Step 2: Convert to fraction form
    131,374.41/181,296.88 = 74,785.78/x
  3. Step 3: Cross multiply
    131,374.41x = 181,296.88 × 74,785.78
  4. Step 4: Simplify right side
    131,374.41x = 13,558,429,042.69
  5. Step 5: Solve for x
    x = 13,558,429,042.69/131,374.41
  6. Step 6: Final answer
    x = 103,204.49

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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.