Home / 109,148.88-150,544.86-75,168.18

Finding the Fourth Proportional to 109,148.88, 150,544.86 and 75,168.18

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Solution

The fourth proportional to 109,148.88, 150,544.86 and 75,168.18 is: 103,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,148.88 : 150,544.86 = 75,168.18 : x
  2. Step 2: Convert to fraction form
    109,148.88/150,544.86 = 75,168.18/x
  3. Step 3: Cross multiply
    109,148.88x = 150,544.86 × 75,168.18
  4. Step 4: Simplify right side
    109,148.88x = 11,316,183,134.55
  5. Step 5: Solve for x
    x = 11,316,183,134.55/109,148.88
  6. Step 6: Final answer
    x = 103,676.58

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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.