Home / 112,043.76-154,650.24-66,143.76

Finding the Fourth Proportional to 112,043.76, 154,650.24 and 66,143.76

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Solution

The fourth proportional to 112,043.76, 154,650.24 and 66,143.76 is: 91,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,043.76 : 154,650.24 = 66,143.76 : x
  2. Step 2: Convert to fraction form
    112,043.76/154,650.24 = 66,143.76/x
  3. Step 3: Cross multiply
    112,043.76x = 154,650.24 × 66,143.76
  4. Step 4: Simplify right side
    112,043.76x = 10,229,148,358.50
  5. Step 5: Solve for x
    x = 10,229,148,358.50/112,043.76
  6. Step 6: Final answer
    x = 91,296.01

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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.