Home / 112,157.78-154,772.27-66,834.76

Finding the Fourth Proportional to 112,157.78, 154,772.27 and 66,834.76

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Solution

The fourth proportional to 112,157.78, 154,772.27 and 66,834.76 is: 92,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,157.78 : 154,772.27 = 66,834.76 : x
  2. Step 2: Convert to fraction form
    112,157.78/154,772.27 = 66,834.76/x
  3. Step 3: Cross multiply
    112,157.78x = 154,772.27 × 66,834.76
  4. Step 4: Simplify right side
    112,157.78x = 10,344,166,746.24
  5. Step 5: Solve for x
    x = 10,344,166,746.24/112,157.78
  6. Step 6: Final answer
    x = 92,228.70

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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.