Home / 185,643.11-278,505.14-105,718.83

Finding the Fourth Proportional to 185,643.11, 278,505.14 and 105,718.83

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Solution

The fourth proportional to 185,643.11, 278,505.14 and 105,718.83 is: 158,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,643.11 : 278,505.14 = 105,718.83 : x
  2. Step 2: Convert to fraction form
    185,643.11/278,505.14 = 105,718.83/x
  3. Step 3: Cross multiply
    185,643.11x = 278,505.14 × 105,718.83
  4. Step 4: Simplify right side
    185,643.11x = 29,443,237,021.19
  5. Step 5: Solve for x
    x = 29,443,237,021.19/185,643.11
  6. Step 6: Final answer
    x = 158,601.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.