Home / 102,067.20-153,099.72-31,947.12

Finding the Fourth Proportional to 102,067.20, 153,099.72 and 31,947.12

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Solution

The fourth proportional to 102,067.20, 153,099.72 and 31,947.12 is: 47,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,067.20 : 153,099.72 = 31,947.12 : x
  2. Step 2: Convert to fraction form
    102,067.20/153,099.72 = 31,947.12/x
  3. Step 3: Cross multiply
    102,067.20x = 153,099.72 × 31,947.12
  4. Step 4: Simplify right side
    102,067.20x = 4,891,095,126.81
  5. Step 5: Solve for x
    x = 4,891,095,126.81/102,067.20
  6. Step 6: Final answer
    x = 47,920.34

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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.