Home / 221,600.64-305,832.96-136,715.52

Finding the Fourth Proportional to 221,600.64, 305,832.96 and 136,715.52

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Solution

The fourth proportional to 221,600.64, 305,832.96 and 136,715.52 is: 188,682.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,600.64 : 305,832.96 = 136,715.52 : x
  2. Step 2: Convert to fraction form
    221,600.64/305,832.96 = 136,715.52/x
  3. Step 3: Cross multiply
    221,600.64x = 305,832.96 × 136,715.52
  4. Step 4: Simplify right side
    221,600.64x = 41,812,112,159.54
  5. Step 5: Solve for x
    x = 41,812,112,159.54/221,600.64
  6. Step 6: Final answer
    x = 188,682.27

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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.