Home / 157,847.72-217,829.94-86,228.60

Finding the Fourth Proportional to 157,847.72, 217,829.94 and 86,228.60

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Solution

The fourth proportional to 157,847.72, 217,829.94 and 86,228.60 is: 118,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,847.72 : 217,829.94 = 86,228.60 : x
  2. Step 2: Convert to fraction form
    157,847.72/217,829.94 = 86,228.60/x
  3. Step 3: Cross multiply
    157,847.72x = 217,829.94 × 86,228.60
  4. Step 4: Simplify right side
    157,847.72x = 18,783,170,764.28
  5. Step 5: Solve for x
    x = 18,783,170,764.28/157,847.72
  6. Step 6: Final answer
    x = 118,995.52

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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.