Home / 198,417.39-273,808.11-107,771.50

Finding the Fourth Proportional to 198,417.39, 273,808.11 and 107,771.50

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Solution

The fourth proportional to 198,417.39, 273,808.11 and 107,771.50 is: 148,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,417.39 : 273,808.11 = 107,771.50 : x
  2. Step 2: Convert to fraction form
    198,417.39/273,808.11 = 107,771.50/x
  3. Step 3: Cross multiply
    198,417.39x = 273,808.11 × 107,771.50
  4. Step 4: Simplify right side
    198,417.39x = 29,508,710,726.87
  5. Step 5: Solve for x
    x = 29,508,710,726.87/198,417.39
  6. Step 6: Final answer
    x = 148,720.39

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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.