Home / 112,037.14-154,650.90-100,079.72

Finding the Fourth Proportional to 112,037.14, 154,650.90 and 100,079.72

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Solution

The fourth proportional to 112,037.14, 154,650.90 and 100,079.72 is: 138,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,037.14 : 154,650.90 = 100,079.72 : x
  2. Step 2: Convert to fraction form
    112,037.14/154,650.90 = 100,079.72/x
  3. Step 3: Cross multiply
    112,037.14x = 154,650.90 × 100,079.72
  4. Step 4: Simplify right side
    112,037.14x = 15,477,418,769.75
  5. Step 5: Solve for x
    x = 15,477,418,769.75/112,037.14
  6. Step 6: Final answer
    x = 138,145.43

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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.