Home / 156,921.03-216,543.78-88,934.09

Finding the Fourth Proportional to 156,921.03, 216,543.78 and 88,934.09

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Solution

The fourth proportional to 156,921.03, 216,543.78 and 88,934.09 is: 122,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.03 : 216,543.78 = 88,934.09 : x
  2. Step 2: Convert to fraction form
    156,921.03/216,543.78 = 88,934.09/x
  3. Step 3: Cross multiply
    156,921.03x = 216,543.78 × 88,934.09
  4. Step 4: Simplify right side
    156,921.03x = 19,258,122,936.74
  5. Step 5: Solve for x
    x = 19,258,122,936.74/156,921.03
  6. Step 6: Final answer
    x = 122,724.93

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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.