Home / 112,255.26-154,908.41-66,909.87

Finding the Fourth Proportional to 112,255.26, 154,908.41 and 66,909.87

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Solution

The fourth proportional to 112,255.26, 154,908.41 and 66,909.87 is: 92,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,255.26 : 154,908.41 = 66,909.87 : x
  2. Step 2: Convert to fraction form
    112,255.26/154,908.41 = 66,909.87/x
  3. Step 3: Cross multiply
    112,255.26x = 154,908.41 × 66,909.87
  4. Step 4: Simplify right side
    112,255.26x = 10,364,900,465.92
  5. Step 5: Solve for x
    x = 10,364,900,465.92/112,255.26
  6. Step 6: Final answer
    x = 92,333.32

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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.