Home / 118,934.72-164,128.56-68,632.64

Finding the Fourth Proportional to 118,934.72, 164,128.56 and 68,632.64

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Solution

The fourth proportional to 118,934.72, 164,128.56 and 68,632.64 is: 94,712.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,934.72 : 164,128.56 = 68,632.64 : x
  2. Step 2: Convert to fraction form
    118,934.72/164,128.56 = 68,632.64/x
  3. Step 3: Cross multiply
    118,934.72x = 164,128.56 × 68,632.64
  4. Step 4: Simplify right side
    118,934.72x = 11,264,576,372.20
  5. Step 5: Solve for x
    x = 11,264,576,372.20/118,934.72
  6. Step 6: Final answer
    x = 94,712.26

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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.