Home / 84,151.24-116,167.37-72,620.28

Finding the Fourth Proportional to 84,151.24, 116,167.37 and 72,620.28

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Solution

The fourth proportional to 84,151.24, 116,167.37 and 72,620.28 is: 100,249.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,151.24 : 116,167.37 = 72,620.28 : x
  2. Step 2: Convert to fraction form
    84,151.24/116,167.37 = 72,620.28/x
  3. Step 3: Cross multiply
    84,151.24x = 116,167.37 × 72,620.28
  4. Step 4: Simplify right side
    84,151.24x = 8,436,106,573.16
  5. Step 5: Solve for x
    x = 8,436,106,573.16/84,151.24
  6. Step 6: Final answer
    x = 100,249.34

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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.