Home / 107,021.05-147,788.33-80,116.85

Finding the Fourth Proportional to 107,021.05, 147,788.33 and 80,116.85

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Solution

The fourth proportional to 107,021.05, 147,788.33 and 80,116.85 is: 110,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,021.05 : 147,788.33 = 80,116.85 : x
  2. Step 2: Convert to fraction form
    107,021.05/147,788.33 = 80,116.85/x
  3. Step 3: Cross multiply
    107,021.05x = 147,788.33 × 80,116.85
  4. Step 4: Simplify right side
    107,021.05x = 11,840,334,881.04
  5. Step 5: Solve for x
    x = 11,840,334,881.04/107,021.05
  6. Step 6: Final answer
    x = 110,635.57

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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.