Home / 158,742.19-219,057.19-87,122.35

Finding the Fourth Proportional to 158,742.19, 219,057.19 and 87,122.35

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Solution

The fourth proportional to 158,742.19, 219,057.19 and 87,122.35 is: 120,224.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,742.19 : 219,057.19 = 87,122.35 : x
  2. Step 2: Convert to fraction form
    158,742.19/219,057.19 = 87,122.35/x
  3. Step 3: Cross multiply
    158,742.19x = 219,057.19 × 87,122.35
  4. Step 4: Simplify right side
    158,742.19x = 19,084,777,177.20
  5. Step 5: Solve for x
    x = 19,084,777,177.20/158,742.19
  6. Step 6: Final answer
    x = 120,224.98

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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.