Home / 106,159.62-146,439.45-66,346.50

Finding the Fourth Proportional to 106,159.62, 146,439.45 and 66,346.50

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Solution

The fourth proportional to 106,159.62, 146,439.45 and 66,346.50 is: 91,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,159.62 : 146,439.45 = 66,346.50 : x
  2. Step 2: Convert to fraction form
    106,159.62/146,439.45 = 66,346.50/x
  3. Step 3: Cross multiply
    106,159.62x = 146,439.45 × 66,346.50
  4. Step 4: Simplify right side
    106,159.62x = 9,715,744,969.43
  5. Step 5: Solve for x
    x = 9,715,744,969.43/106,159.62
  6. Step 6: Final answer
    x = 91,520.16

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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.