Home / 157,286.45-236,031.12-57,438.29

Finding the Fourth Proportional to 157,286.45, 236,031.12 and 57,438.29

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Solution

The fourth proportional to 157,286.45, 236,031.12 and 57,438.29 is: 86,194.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,286.45 : 236,031.12 = 57,438.29 : x
  2. Step 2: Convert to fraction form
    157,286.45/236,031.12 = 57,438.29/x
  3. Step 3: Cross multiply
    157,286.45x = 236,031.12 × 57,438.29
  4. Step 4: Simplify right side
    157,286.45x = 13,557,222,739.43
  5. Step 5: Solve for x
    x = 13,557,222,739.43/157,286.45
  6. Step 6: Final answer
    x = 86,194.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.