Home / 112,200.39-154,856.68-66,881.36

Finding the Fourth Proportional to 112,200.39, 154,856.68 and 66,881.36

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Solution

The fourth proportional to 112,200.39, 154,856.68 and 66,881.36 is: 92,308.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,200.39 : 154,856.68 = 66,881.36 : x
  2. Step 2: Convert to fraction form
    112,200.39/154,856.68 = 66,881.36/x
  3. Step 3: Cross multiply
    112,200.39x = 154,856.68 × 66,881.36
  4. Step 4: Simplify right side
    112,200.39x = 10,357,025,583.42
  5. Step 5: Solve for x
    x = 10,357,025,583.42/112,200.39
  6. Step 6: Final answer
    x = 92,308.29

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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.