Home / 118,572.18-163,634.85-68,287.38

Finding the Fourth Proportional to 118,572.18, 163,634.85 and 68,287.38

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Solution

The fourth proportional to 118,572.18, 163,634.85 and 68,287.38 is: 94,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,572.18 : 163,634.85 = 68,287.38 : x
  2. Step 2: Convert to fraction form
    118,572.18/163,634.85 = 68,287.38/x
  3. Step 3: Cross multiply
    118,572.18x = 163,634.85 × 68,287.38
  4. Step 4: Simplify right side
    118,572.18x = 11,174,195,183.19
  5. Step 5: Solve for x
    x = 11,174,195,183.19/118,572.18
  6. Step 6: Final answer
    x = 94,239.60

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1.5x scale

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.