Home / 186,830.57-257,831.89-106,269.71

Finding the Fourth Proportional to 186,830.57, 257,831.89 and 106,269.71

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Solution

The fourth proportional to 186,830.57, 257,831.89 and 106,269.71 is: 146,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,830.57 : 257,831.89 = 106,269.71 : x
  2. Step 2: Convert to fraction form
    186,830.57/257,831.89 = 106,269.71/x
  3. Step 3: Cross multiply
    186,830.57x = 257,831.89 × 106,269.71
  4. Step 4: Simplify right side
    186,830.57x = 27,399,718,624.22
  5. Step 5: Solve for x
    x = 27,399,718,624.22/186,830.57
  6. Step 6: Final answer
    x = 146,655.43

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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.