Home / 152,138.41-209,934.84-84,144.58

Finding the Fourth Proportional to 152,138.41, 209,934.84 and 84,144.58

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Solution

The fourth proportional to 152,138.41, 209,934.84 and 84,144.58 is: 116,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,138.41 : 209,934.84 = 84,144.58 : x
  2. Step 2: Convert to fraction form
    152,138.41/209,934.84 = 84,144.58/x
  3. Step 3: Cross multiply
    152,138.41x = 209,934.84 × 84,144.58
  4. Step 4: Simplify right side
    152,138.41x = 17,664,878,414.33
  5. Step 5: Solve for x
    x = 17,664,878,414.33/152,138.41
  6. Step 6: Final answer
    x = 116,110.58

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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.