Home / 131,518.08-197,704.80-105,507.36

Finding the Fourth Proportional to 131,518.08, 197,704.80 and 105,507.36

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Solution

The fourth proportional to 131,518.08, 197,704.80 and 105,507.36 is: 158,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,518.08 : 197,704.80 = 105,507.36 : x
  2. Step 2: Convert to fraction form
    131,518.08/197,704.80 = 105,507.36/x
  3. Step 3: Cross multiply
    131,518.08x = 197,704.80 × 105,507.36
  4. Step 4: Simplify right side
    131,518.08x = 20,859,311,507.33
  5. Step 5: Solve for x
    x = 20,859,311,507.33/131,518.08
  6. Step 6: Final answer
    x = 158,604.14

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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.