Home / 185,678.87-256,237.61-105,121.94

Finding the Fourth Proportional to 185,678.87, 256,237.61 and 105,121.94

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Solution

The fourth proportional to 185,678.87, 256,237.61 and 105,121.94 is: 145,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,678.87 : 256,237.61 = 105,121.94 : x
  2. Step 2: Convert to fraction form
    185,678.87/256,237.61 = 105,121.94/x
  3. Step 3: Cross multiply
    185,678.87x = 256,237.61 × 105,121.94
  4. Step 4: Simplify right side
    185,678.87x = 26,936,194,664.16
  5. Step 5: Solve for x
    x = 26,936,194,664.16/185,678.87
  6. Step 6: Final answer
    x = 145,068.71

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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.