Home / 156,534.75-216,021.83-88,548.39

Finding the Fourth Proportional to 156,534.75, 216,021.83 and 88,548.39

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Solution

The fourth proportional to 156,534.75, 216,021.83 and 88,548.39 is: 122,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,534.75 : 216,021.83 = 88,548.39 : x
  2. Step 2: Convert to fraction form
    156,534.75/216,021.83 = 88,548.39/x
  3. Step 3: Cross multiply
    156,534.75x = 216,021.83 × 88,548.39
  4. Step 4: Simplify right side
    156,534.75x = 19,128,384,808.61
  5. Step 5: Solve for x
    x = 19,128,384,808.61/156,534.75
  6. Step 6: Final answer
    x = 122,198.97

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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.