Home / 109,036.72-163,212.36-75,103.54

Finding the Fourth Proportional to 109,036.72, 163,212.36 and 75,103.54

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Solution

The fourth proportional to 109,036.72, 163,212.36 and 75,103.54 is: 112,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,036.72 : 163,212.36 = 75,103.54 : x
  2. Step 2: Convert to fraction form
    109,036.72/163,212.36 = 75,103.54/x
  3. Step 3: Cross multiply
    109,036.72x = 163,212.36 × 75,103.54
  4. Step 4: Simplify right side
    109,036.72x = 12,257,826,007.75
  5. Step 5: Solve for x
    x = 12,257,826,007.75/109,036.72
  6. Step 6: Final answer
    x = 112,419.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.