Home / 117,394.18-176,084.79-85,836.58

Finding the Fourth Proportional to 117,394.18, 176,084.79 and 85,836.58

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Solution

The fourth proportional to 117,394.18, 176,084.79 and 85,836.58 is: 128,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,394.18 : 176,084.79 = 85,836.58 : x
  2. Step 2: Convert to fraction form
    117,394.18/176,084.79 = 85,836.58/x
  3. Step 3: Cross multiply
    117,394.18x = 176,084.79 × 85,836.58
  4. Step 4: Simplify right side
    117,394.18x = 15,114,516,163.62
  5. Step 5: Solve for x
    x = 15,114,516,163.62/117,394.18
  6. Step 6: Final answer
    x = 128,750.13

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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.