Home / 112,301.21-154,919.75-66,947.23

Finding the Fourth Proportional to 112,301.21, 154,919.75 and 66,947.23

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Solution

The fourth proportional to 112,301.21, 154,919.75 and 66,947.23 is: 92,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,301.21 : 154,919.75 = 66,947.23 : x
  2. Step 2: Convert to fraction form
    112,301.21/154,919.75 = 66,947.23/x
  3. Step 3: Cross multiply
    112,301.21x = 154,919.75 × 66,947.23
  4. Step 4: Simplify right side
    112,301.21x = 10,371,448,900.14
  5. Step 5: Solve for x
    x = 10,371,448,900.14/112,301.21
  6. Step 6: Final answer
    x = 92,353.85

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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.