Home / 109,154.35-150,632.78-61,407.75

Finding the Fourth Proportional to 109,154.35, 150,632.78 and 61,407.75

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Solution

The fourth proportional to 109,154.35, 150,632.78 and 61,407.75 is: 84,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,154.35 : 150,632.78 = 61,407.75 : x
  2. Step 2: Convert to fraction form
    109,154.35/150,632.78 = 61,407.75/x
  3. Step 3: Cross multiply
    109,154.35x = 150,632.78 × 61,407.75
  4. Step 4: Simplify right side
    109,154.35x = 9,250,019,789.01
  5. Step 5: Solve for x
    x = 9,250,019,789.01/109,154.35
  6. Step 6: Final answer
    x = 84,742.57

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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.