Home / 146,321.20-201,938.12-105,518.88

Finding the Fourth Proportional to 146,321.20, 201,938.12 and 105,518.88

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Solution

The fourth proportional to 146,321.20, 201,938.12 and 105,518.88 is: 145,626.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,321.20 : 201,938.12 = 105,518.88 : x
  2. Step 2: Convert to fraction form
    146,321.20/201,938.12 = 105,518.88/x
  3. Step 3: Cross multiply
    146,321.20x = 201,938.12 × 105,518.88
  4. Step 4: Simplify right side
    146,321.20x = 21,308,284,251.71
  5. Step 5: Solve for x
    x = 21,308,284,251.71/146,321.20
  6. Step 6: Final answer
    x = 145,626.77

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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.