Home / 186,389.11-257,219.72-101,505.97

Finding the Fourth Proportional to 186,389.11, 257,219.72 and 101,505.97

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Solution

The fourth proportional to 186,389.11, 257,219.72 and 101,505.97 is: 140,079.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,389.11 : 257,219.72 = 101,505.97 : x
  2. Step 2: Convert to fraction form
    186,389.11/257,219.72 = 101,505.97/x
  3. Step 3: Cross multiply
    186,389.11x = 257,219.72 × 101,505.97
  4. Step 4: Simplify right side
    186,389.11x = 26,109,337,181.73
  5. Step 5: Solve for x
    x = 26,109,337,181.73/186,389.11
  6. Step 6: Final answer
    x = 140,079.74

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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.