Home / 220,987.64-331,502.83-87,838.02

Finding the Fourth Proportional to 220,987.64, 331,502.83 and 87,838.02

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Solution

The fourth proportional to 220,987.64, 331,502.83 and 87,838.02 is: 131,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,987.64 : 331,502.83 = 87,838.02 : x
  2. Step 2: Convert to fraction form
    220,987.64/331,502.83 = 87,838.02/x
  3. Step 3: Cross multiply
    220,987.64x = 331,502.83 × 87,838.02
  4. Step 4: Simplify right side
    220,987.64x = 29,118,551,992.00
  5. Step 5: Solve for x
    x = 29,118,551,992.00/220,987.64
  6. Step 6: Final answer
    x = 131,765.52

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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.