Home / 107,267.15-148,183.09-85,729.32

Finding the Fourth Proportional to 107,267.15, 148,183.09 and 85,729.32

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Solution

The fourth proportional to 107,267.15, 148,183.09 and 85,729.32 is: 118,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,267.15 : 148,183.09 = 85,729.32 : x
  2. Step 2: Convert to fraction form
    107,267.15/148,183.09 = 85,729.32/x
  3. Step 3: Cross multiply
    107,267.15x = 148,183.09 × 85,729.32
  4. Step 4: Simplify right side
    107,267.15x = 12,703,635,326.88
  5. Step 5: Solve for x
    x = 12,703,635,326.88/107,267.15
  6. Step 6: Final answer
    x = 118,429.87

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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.