Home / 158,716.66-219,028.38-87,097.90

Finding the Fourth Proportional to 158,716.66, 219,028.38 and 87,097.90

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Solution

The fourth proportional to 158,716.66, 219,028.38 and 87,097.90 is: 120,194.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,716.66 : 219,028.38 = 87,097.90 : x
  2. Step 2: Convert to fraction form
    158,716.66/219,028.38 = 87,097.90/x
  3. Step 3: Cross multiply
    158,716.66x = 219,028.38 × 87,097.90
  4. Step 4: Simplify right side
    158,716.66x = 19,076,911,938.40
  5. Step 5: Solve for x
    x = 19,076,911,938.40/158,716.66
  6. Step 6: Final answer
    x = 120,194.77

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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.