Home / 135,031.83-186,347.67-74,606.37

Finding the Fourth Proportional to 135,031.83, 186,347.67 and 74,606.37

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Solution

The fourth proportional to 135,031.83, 186,347.67 and 74,606.37 is: 102,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,031.83 : 186,347.67 = 74,606.37 : x
  2. Step 2: Convert to fraction form
    135,031.83/186,347.67 = 74,606.37/x
  3. Step 3: Cross multiply
    135,031.83x = 186,347.67 × 74,606.37
  4. Step 4: Simplify right side
    135,031.83x = 13,902,723,216.66
  5. Step 5: Solve for x
    x = 13,902,723,216.66/135,031.83
  6. Step 6: Final answer
    x = 102,958.86

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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.