Home / 84,709.38-126,814.41-74,199.93

Finding the Fourth Proportional to 84,709.38, 126,814.41 and 74,199.93

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Solution

The fourth proportional to 84,709.38, 126,814.41 and 74,199.93 is: 111,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,709.38 : 126,814.41 = 74,199.93 : x
  2. Step 2: Convert to fraction form
    84,709.38/126,814.41 = 74,199.93/x
  3. Step 3: Cross multiply
    84,709.38x = 126,814.41 × 74,199.93
  4. Step 4: Simplify right side
    84,709.38x = 9,409,620,344.99
  5. Step 5: Solve for x
    x = 9,409,620,344.99/84,709.38
  6. Step 6: Final answer
    x = 111,081.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.