Home / 289,156.77-433,722.08-75,919.68

Finding the Fourth Proportional to 289,156.77, 433,722.08 and 75,919.68

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Solution

The fourth proportional to 289,156.77, 433,722.08 and 75,919.68 is: 113,876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,156.77 : 433,722.08 = 75,919.68 : x
  2. Step 2: Convert to fraction form
    289,156.77/433,722.08 = 75,919.68/x
  3. Step 3: Cross multiply
    289,156.77x = 433,722.08 × 75,919.68
  4. Step 4: Simplify right side
    289,156.77x = 32,928,041,712.33
  5. Step 5: Solve for x
    x = 32,928,041,712.33/289,156.77
  6. Step 6: Final answer
    x = 113,876.09

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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.