Home / 90,804.24-125,339.70-81,227.23

Finding the Fourth Proportional to 90,804.24, 125,339.70 and 81,227.23

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Solution

The fourth proportional to 90,804.24, 125,339.70 and 81,227.23 is: 112,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,804.24 : 125,339.70 = 81,227.23 : x
  2. Step 2: Convert to fraction form
    90,804.24/125,339.70 = 81,227.23/x
  3. Step 3: Cross multiply
    90,804.24x = 125,339.70 × 81,227.23
  4. Step 4: Simplify right side
    90,804.24x = 10,180,996,983.80
  5. Step 5: Solve for x
    x = 10,180,996,983.80/90,804.24
  6. Step 6: Final answer
    x = 112,120.28

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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.