Home / 158,738.14-219,058.45-87,118.35

Finding the Fourth Proportional to 158,738.14, 219,058.45 and 87,118.35

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Solution

The fourth proportional to 158,738.14, 219,058.45 and 87,118.35 is: 120,223.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,738.14 : 219,058.45 = 87,118.35 : x
  2. Step 2: Convert to fraction form
    158,738.14/219,058.45 = 87,118.35/x
  3. Step 3: Cross multiply
    158,738.14x = 219,058.45 × 87,118.35
  4. Step 4: Simplify right side
    158,738.14x = 19,084,010,717.56
  5. Step 5: Solve for x
    x = 19,084,010,717.56/158,738.14
  6. Step 6: Final answer
    x = 120,223.22

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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.