Home / 186,332.17-257,161.62-105,785.77

Finding the Fourth Proportional to 186,332.17, 257,161.62 and 105,785.77

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Solution

The fourth proportional to 186,332.17, 257,161.62 and 105,785.77 is: 145,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,332.17 : 257,161.62 = 105,785.77 : x
  2. Step 2: Convert to fraction form
    186,332.17/257,161.62 = 105,785.77/x
  3. Step 3: Cross multiply
    186,332.17x = 257,161.62 × 105,785.77
  4. Step 4: Simplify right side
    186,332.17x = 27,204,039,986.15
  5. Step 5: Solve for x
    x = 27,204,039,986.15/186,332.17
  6. Step 6: Final answer
    x = 145,997.55

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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.