Home / 186,308.17-257,138.80-109,822.72

Finding the Fourth Proportional to 186,308.17, 257,138.80 and 109,822.72

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Solution

The fourth proportional to 186,308.17, 257,138.80 and 109,822.72 is: 151,575.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,308.17 : 257,138.80 = 109,822.72 : x
  2. Step 2: Convert to fraction form
    186,308.17/257,138.80 = 109,822.72/x
  3. Step 3: Cross multiply
    186,308.17x = 257,138.80 × 109,822.72
  4. Step 4: Simplify right side
    186,308.17x = 28,239,682,433.54
  5. Step 5: Solve for x
    x = 28,239,682,433.54/186,308.17
  6. Step 6: Final answer
    x = 151,575.12

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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.