Home / 105,624.64-158,516.88-39,105.28

Finding the Fourth Proportional to 105,624.64, 158,516.88 and 39,105.28

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Solution

The fourth proportional to 105,624.64, 158,516.88 and 39,105.28 is: 58,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,624.64 : 158,516.88 = 39,105.28 : x
  2. Step 2: Convert to fraction form
    105,624.64/158,516.88 = 39,105.28/x
  3. Step 3: Cross multiply
    105,624.64x = 158,516.88 × 39,105.28
  4. Step 4: Simplify right side
    105,624.64x = 6,198,846,977.13
  5. Step 5: Solve for x
    x = 6,198,846,977.13/105,624.64
  6. Step 6: Final answer
    x = 58,687.51

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1.5x scale

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.