Home / 107,811.28-161,709.34-40,330.44

Finding the Fourth Proportional to 107,811.28, 161,709.34 and 40,330.44

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Solution

The fourth proportional to 107,811.28, 161,709.34 and 40,330.44 is: 60,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.28 : 161,709.34 = 40,330.44 : x
  2. Step 2: Convert to fraction form
    107,811.28/161,709.34 = 40,330.44/x
  3. Step 3: Cross multiply
    107,811.28x = 161,709.34 × 40,330.44
  4. Step 4: Simplify right side
    107,811.28x = 6,521,808,834.31
  5. Step 5: Solve for x
    x = 6,521,808,834.31/107,811.28
  6. Step 6: Final answer
    x = 60,492.82

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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.