Home / 157,554.48-236,436.82-81,722.91

Finding the Fourth Proportional to 157,554.48, 236,436.82 and 81,722.91

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Solution

The fourth proportional to 157,554.48, 236,436.82 and 81,722.91 is: 122,638.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,554.48 : 236,436.82 = 81,722.91 : x
  2. Step 2: Convert to fraction form
    157,554.48/236,436.82 = 81,722.91/x
  3. Step 3: Cross multiply
    157,554.48x = 236,436.82 × 81,722.91
  4. Step 4: Simplify right side
    157,554.48x = 19,322,304,961.55
  5. Step 5: Solve for x
    x = 19,322,304,961.55/157,554.48
  6. Step 6: Final answer
    x = 122,638.88

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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.