Home / 107,729.54-148,800.10-76,039.92

Finding the Fourth Proportional to 107,729.54, 148,800.10 and 76,039.92

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Solution

The fourth proportional to 107,729.54, 148,800.10 and 76,039.92 is: 105,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,729.54 : 148,800.10 = 76,039.92 : x
  2. Step 2: Convert to fraction form
    107,729.54/148,800.10 = 76,039.92/x
  3. Step 3: Cross multiply
    107,729.54x = 148,800.10 × 76,039.92
  4. Step 4: Simplify right side
    107,729.54x = 11,314,747,699.99
  5. Step 5: Solve for x
    x = 11,314,747,699.99/107,729.54
  6. Step 6: Final answer
    x = 105,029.20

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1.5x scale

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.