Home / 101,518.12-140,098.74-55,580.98

Finding the Fourth Proportional to 101,518.12, 140,098.74 and 55,580.98

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Solution

The fourth proportional to 101,518.12, 140,098.74 and 55,580.98 is: 76,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,518.12 : 140,098.74 = 55,580.98 : x
  2. Step 2: Convert to fraction form
    101,518.12/140,098.74 = 55,580.98/x
  3. Step 3: Cross multiply
    101,518.12x = 140,098.74 × 55,580.98
  4. Step 4: Simplify right side
    101,518.12x = 7,786,825,265.97
  5. Step 5: Solve for x
    x = 7,786,825,265.97/101,518.12
  6. Step 6: Final answer
    x = 76,703.80

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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.