Home / 112,018.28-154,642.36-75,910.48

Finding the Fourth Proportional to 112,018.28, 154,642.36 and 75,910.48

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Solution

The fourth proportional to 112,018.28, 154,642.36 and 75,910.48 is: 104,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,018.28 : 154,642.36 = 75,910.48 : x
  2. Step 2: Convert to fraction form
    112,018.28/154,642.36 = 75,910.48/x
  3. Step 3: Cross multiply
    112,018.28x = 154,642.36 × 75,910.48
  4. Step 4: Simplify right side
    112,018.28x = 11,738,975,345.85
  5. Step 5: Solve for x
    x = 11,738,975,345.85/112,018.28
  6. Step 6: Final answer
    x = 104,795.18

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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.