Home / 135,364.10-186,796.40-74,930.47

Finding the Fourth Proportional to 135,364.10, 186,796.40 and 74,930.47

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Solution

The fourth proportional to 135,364.10, 186,796.40 and 74,930.47 is: 103,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,364.10 : 186,796.40 = 74,930.47 : x
  2. Step 2: Convert to fraction form
    135,364.10/186,796.40 = 74,930.47/x
  3. Step 3: Cross multiply
    135,364.10x = 186,796.40 × 74,930.47
  4. Step 4: Simplify right side
    135,364.10x = 13,996,741,204.66
  5. Step 5: Solve for x
    x = 13,996,741,204.66/135,364.10
  6. Step 6: Final answer
    x = 103,400.69

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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.