Home / 112,044.16-154,660.58-100,086.72

Finding the Fourth Proportional to 112,044.16, 154,660.58 and 100,086.72

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Solution

The fourth proportional to 112,044.16, 154,660.58 and 100,086.72 is: 138,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,044.16 : 154,660.58 = 100,086.72 : x
  2. Step 2: Convert to fraction form
    112,044.16/154,660.58 = 100,086.72/x
  3. Step 3: Cross multiply
    112,044.16x = 154,660.58 × 100,086.72
  4. Step 4: Simplify right side
    112,044.16x = 15,479,470,165.50
  5. Step 5: Solve for x
    x = 15,479,470,165.50/112,044.16
  6. Step 6: Final answer
    x = 138,155.08

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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.