Home / 157,845.48-217,824.03-86,223.66

Finding the Fourth Proportional to 157,845.48, 217,824.03 and 86,223.66

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Solution

The fourth proportional to 157,845.48, 217,824.03 and 86,223.66 is: 118,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,845.48 : 217,824.03 = 86,223.66 : x
  2. Step 2: Convert to fraction form
    157,845.48/217,824.03 = 86,223.66/x
  3. Step 3: Cross multiply
    157,845.48x = 217,824.03 × 86,223.66
  4. Step 4: Simplify right side
    157,845.48x = 18,781,585,102.55
  5. Step 5: Solve for x
    x = 18,781,585,102.55/157,845.48
  6. Step 6: Final answer
    x = 118,987.16

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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.