Home / 135,327.18-186,743.81-74,894.22

Finding the Fourth Proportional to 135,327.18, 186,743.81 and 74,894.22

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Solution

The fourth proportional to 135,327.18, 186,743.81 and 74,894.22 is: 103,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,327.18 : 186,743.81 = 74,894.22 : x
  2. Step 2: Convert to fraction form
    135,327.18/186,743.81 = 74,894.22/x
  3. Step 3: Cross multiply
    135,327.18x = 186,743.81 × 74,894.22
  4. Step 4: Simplify right side
    135,327.18x = 13,986,031,615.31
  5. Step 5: Solve for x
    x = 13,986,031,615.31/135,327.18
  6. Step 6: Final answer
    x = 103,349.76

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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.