Home / 112,014.48-154,568.88-68,987.28

Finding the Fourth Proportional to 112,014.48, 154,568.88 and 68,987.28

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Solution

The fourth proportional to 112,014.48, 154,568.88 and 68,987.28 is: 95,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,014.48 : 154,568.88 = 68,987.28 : x
  2. Step 2: Convert to fraction form
    112,014.48/154,568.88 = 68,987.28/x
  3. Step 3: Cross multiply
    112,014.48x = 154,568.88 × 68,987.28
  4. Step 4: Simplify right side
    112,014.48x = 10,663,286,603.85
  5. Step 5: Solve for x
    x = 10,663,286,603.85/112,014.48
  6. Step 6: Final answer
    x = 95,195.61

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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.