Home / 106,171.12-146,455.20-66,358

Finding the Fourth Proportional to 106,171.12, 146,455.20 and 66,358

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Solution

The fourth proportional to 106,171.12, 146,455.20 and 66,358 is: 91,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,171.12 : 146,455.20 = 66,358 : x
  2. Step 2: Convert to fraction form
    106,171.12/146,455.20 = 66,358/x
  3. Step 3: Cross multiply
    106,171.12x = 146,455.20 × 66,358
  4. Step 4: Simplify right side
    106,171.12x = 9,718,474,161.60
  5. Step 5: Solve for x
    x = 9,718,474,161.60/106,171.12
  6. Step 6: Final answer
    x = 91,535.95

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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.