Home / 131,656.08-197,911.80-105,645.36

Finding the Fourth Proportional to 131,656.08, 197,911.80 and 105,645.36

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Solution

The fourth proportional to 131,656.08, 197,911.80 and 105,645.36 is: 158,811.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,656.08 : 197,911.80 = 105,645.36 : x
  2. Step 2: Convert to fraction form
    131,656.08/197,911.80 = 105,645.36/x
  3. Step 3: Cross multiply
    131,656.08x = 197,911.80 × 105,645.36
  4. Step 4: Simplify right side
    131,656.08x = 20,908,463,359.25
  5. Step 5: Solve for x
    x = 20,908,463,359.25/131,656.08
  6. Step 6: Final answer
    x = 158,811.23

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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.