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Finding the Fourth Proportional to 106,489.80, 146,956.80 and 58,744.80

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Solution

The fourth proportional to 106,489.80, 146,956.80 and 58,744.80 is: 81,068.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,489.80 : 146,956.80 = 58,744.80 : x
  2. Step 2: Convert to fraction form
    106,489.80/146,956.80 = 58,744.80/x
  3. Step 3: Cross multiply
    106,489.80x = 146,956.80 × 58,744.80
  4. Step 4: Simplify right side
    106,489.80x = 8,632,947,824.64
  5. Step 5: Solve for x
    x = 8,632,947,824.64/106,489.80
  6. Step 6: Final answer
    x = 81,068.31

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1.5x scale

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.