Home / 118,395.20-163,387.79-64,683.69

Finding the Fourth Proportional to 118,395.20, 163,387.79 and 64,683.69

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Solution

The fourth proportional to 118,395.20, 163,387.79 and 64,683.69 is: 89,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,395.20 : 163,387.79 = 64,683.69 : x
  2. Step 2: Convert to fraction form
    118,395.20/163,387.79 = 64,683.69/x
  3. Step 3: Cross multiply
    118,395.20x = 163,387.79 × 64,683.69
  4. Step 4: Simplify right side
    118,395.20x = 10,568,524,834.73
  5. Step 5: Solve for x
    x = 10,568,524,834.73/118,395.20
  6. Step 6: Final answer
    x = 89,264.81

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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.