Home / 117,188.90-175,715.64-103,177.04

Finding the Fourth Proportional to 117,188.90, 175,715.64 and 103,177.04

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Solution

The fourth proportional to 117,188.90, 175,715.64 and 103,177.04 is: 154,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,188.90 : 175,715.64 = 103,177.04 : x
  2. Step 2: Convert to fraction form
    117,188.90/175,715.64 = 103,177.04/x
  3. Step 3: Cross multiply
    117,188.90x = 175,715.64 × 103,177.04
  4. Step 4: Simplify right side
    117,188.90x = 18,129,819,616.91
  5. Step 5: Solve for x
    x = 18,129,819,616.91/117,188.90
  6. Step 6: Final answer
    x = 154,705.95

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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.