Home / 109,517.52-151,157.76-69,205.68

Finding the Fourth Proportional to 109,517.52, 151,157.76 and 69,205.68

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Solution

The fourth proportional to 109,517.52, 151,157.76 and 69,205.68 is: 95,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,517.52 : 151,157.76 = 69,205.68 : x
  2. Step 2: Convert to fraction form
    109,517.52/151,157.76 = 69,205.68/x
  3. Step 3: Cross multiply
    109,517.52x = 151,157.76 × 69,205.68
  4. Step 4: Simplify right side
    109,517.52x = 10,460,975,568.08
  5. Step 5: Solve for x
    x = 10,460,975,568.08/109,517.52
  6. Step 6: Final answer
    x = 95,518.74

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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.