Home / 112,122.24-154,729.92-61,134.56

Finding the Fourth Proportional to 112,122.24, 154,729.92 and 61,134.56

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Solution

The fourth proportional to 112,122.24, 154,729.92 and 61,134.56 is: 84,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,122.24 : 154,729.92 = 61,134.56 : x
  2. Step 2: Convert to fraction form
    112,122.24/154,729.92 = 61,134.56/x
  3. Step 3: Cross multiply
    112,122.24x = 154,729.92 × 61,134.56
  4. Step 4: Simplify right side
    112,122.24x = 9,459,345,578.04
  5. Step 5: Solve for x
    x = 9,459,345,578.04/112,122.24
  6. Step 6: Final answer
    x = 84,366.36

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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.