Home / 117,815.60-176,334.60-91,377.20

Finding the Fourth Proportional to 117,815.60, 176,334.60 and 91,377.20

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Solution

The fourth proportional to 117,815.60, 176,334.60 and 91,377.20 is: 136,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,815.60 : 176,334.60 = 91,377.20 : x
  2. Step 2: Convert to fraction form
    117,815.60/176,334.60 = 91,377.20/x
  3. Step 3: Cross multiply
    117,815.60x = 176,334.60 × 91,377.20
  4. Step 4: Simplify right side
    117,815.60x = 16,112,962,011.12
  5. Step 5: Solve for x
    x = 16,112,962,011.12/117,815.60
  6. Step 6: Final answer
    x = 136,764.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.