Home / 158,741.19-219,055.82-87,121.35

Finding the Fourth Proportional to 158,741.19, 219,055.82 and 87,121.35

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Solution

The fourth proportional to 158,741.19, 219,055.82 and 87,121.35 is: 120,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,741.19 : 219,055.82 = 87,121.35 : x
  2. Step 2: Convert to fraction form
    158,741.19/219,055.82 = 87,121.35/x
  3. Step 3: Cross multiply
    158,741.19x = 219,055.82 × 87,121.35
  4. Step 4: Simplify right side
    158,741.19x = 19,084,438,328.15
  5. Step 5: Solve for x
    x = 19,084,438,328.15/158,741.19
  6. Step 6: Final answer
    x = 120,223.61

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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.