Home / 171,921.12-237,190.32-112,339.68

Finding the Fourth Proportional to 171,921.12, 237,190.32 and 112,339.68

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Solution

The fourth proportional to 171,921.12, 237,190.32 and 112,339.68 is: 154,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,921.12 : 237,190.32 = 112,339.68 : x
  2. Step 2: Convert to fraction form
    171,921.12/237,190.32 = 112,339.68/x
  3. Step 3: Cross multiply
    171,921.12x = 237,190.32 × 112,339.68
  4. Step 4: Simplify right side
    171,921.12x = 26,645,884,647.90
  5. Step 5: Solve for x
    x = 26,645,884,647.90/171,921.12
  6. Step 6: Final answer
    x = 154,989.01

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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.