Home / 158,735.36-219,054.16-87,116.56

Finding the Fourth Proportional to 158,735.36, 219,054.16 and 87,116.56

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Solution

The fourth proportional to 158,735.36, 219,054.16 and 87,116.56 is: 120,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,735.36 : 219,054.16 = 87,116.56 : x
  2. Step 2: Convert to fraction form
    158,735.36/219,054.16 = 87,116.56/x
  3. Step 3: Cross multiply
    158,735.36x = 219,054.16 × 87,116.56
  4. Step 4: Simplify right side
    158,735.36x = 19,083,244,872.89
  5. Step 5: Solve for x
    x = 19,083,244,872.89/158,735.36
  6. Step 6: Final answer
    x = 120,220.50

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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.