Home / 134,161.29-185,138.66-76,798.71

Finding the Fourth Proportional to 134,161.29, 185,138.66 and 76,798.71

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Solution

The fourth proportional to 134,161.29, 185,138.66 and 76,798.71 is: 105,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,161.29 : 185,138.66 = 76,798.71 : x
  2. Step 2: Convert to fraction form
    134,161.29/185,138.66 = 76,798.71/x
  3. Step 3: Cross multiply
    134,161.29x = 185,138.66 × 76,798.71
  4. Step 4: Simplify right side
    134,161.29x = 14,218,409,930.42
  5. Step 5: Solve for x
    x = 14,218,409,930.42/134,161.29
  6. Step 6: Final answer
    x = 105,979.98

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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.