Home / 107,143.20-147,828.32-66,863.44

Finding the Fourth Proportional to 107,143.20, 147,828.32 and 66,863.44

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Solution

The fourth proportional to 107,143.20, 147,828.32 and 66,863.44 is: 92,253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,143.20 : 147,828.32 = 66,863.44 : x
  2. Step 2: Convert to fraction form
    107,143.20/147,828.32 = 66,863.44/x
  3. Step 3: Cross multiply
    107,143.20x = 147,828.32 × 66,863.44
  4. Step 4: Simplify right side
    107,143.20x = 9,884,310,004.62
  5. Step 5: Solve for x
    x = 9,884,310,004.62/107,143.20
  6. Step 6: Final answer
    x = 92,253.26

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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.