Home / 135,041.36-186,359.03-74,613.39

Finding the Fourth Proportional to 135,041.36, 186,359.03 and 74,613.39

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Solution

The fourth proportional to 135,041.36, 186,359.03 and 74,613.39 is: 102,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,041.36 : 186,359.03 = 74,613.39 : x
  2. Step 2: Convert to fraction form
    135,041.36/186,359.03 = 74,613.39/x
  3. Step 3: Cross multiply
    135,041.36x = 186,359.03 × 74,613.39
  4. Step 4: Simplify right side
    135,041.36x = 13,904,878,612.34
  5. Step 5: Solve for x
    x = 13,904,878,612.34/135,041.36
  6. Step 6: Final answer
    x = 102,967.56

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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.