Home / 134,146.40-185,081.67-80,411.81

Finding the Fourth Proportional to 134,146.40, 185,081.67 and 80,411.81

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Solution

The fourth proportional to 134,146.40, 185,081.67 and 80,411.81 is: 110,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,146.40 : 185,081.67 = 80,411.81 : x
  2. Step 2: Convert to fraction form
    134,146.40/185,081.67 = 80,411.81/x
  3. Step 3: Cross multiply
    134,146.40x = 185,081.67 × 80,411.81
  4. Step 4: Simplify right side
    134,146.40x = 14,882,752,243.68
  5. Step 5: Solve for x
    x = 14,882,752,243.68/134,146.40
  6. Step 6: Final answer
    x = 110,944.10

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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.