Home / 117,427.75-176,139.58-81,370.95

Finding the Fourth Proportional to 117,427.75, 176,139.58 and 81,370.95

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Solution

The fourth proportional to 117,427.75, 176,139.58 and 81,370.95 is: 122,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,427.75 : 176,139.58 = 81,370.95 : x
  2. Step 2: Convert to fraction form
    117,427.75/176,139.58 = 81,370.95/x
  3. Step 3: Cross multiply
    117,427.75x = 176,139.58 × 81,370.95
  4. Step 4: Simplify right side
    117,427.75x = 14,332,645,388.71
  5. Step 5: Solve for x
    x = 14,332,645,388.71/117,427.75
  6. Step 6: Final answer
    x = 122,055.01

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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.