Home / 105,955.52-158,929.68-49,764.20

Finding the Fourth Proportional to 105,955.52, 158,929.68 and 49,764.20

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Solution

The fourth proportional to 105,955.52, 158,929.68 and 49,764.20 is: 74,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,955.52 : 158,929.68 = 49,764.20 : x
  2. Step 2: Convert to fraction form
    105,955.52/158,929.68 = 49,764.20/x
  3. Step 3: Cross multiply
    105,955.52x = 158,929.68 × 49,764.20
  4. Step 4: Simplify right side
    105,955.52x = 7,909,008,381.46
  5. Step 5: Solve for x
    x = 7,909,008,381.46/105,955.52
  6. Step 6: Final answer
    x = 74,644.61

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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.