Home / 131,655.08-197,910.30-105,644.36

Finding the Fourth Proportional to 131,655.08, 197,910.30 and 105,644.36

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Solution

The fourth proportional to 131,655.08, 197,910.30 and 105,644.36 is: 158,809.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,655.08 : 197,910.30 = 105,644.36 : x
  2. Step 2: Convert to fraction form
    131,655.08/197,910.30 = 105,644.36/x
  3. Step 3: Cross multiply
    131,655.08x = 197,910.30 × 105,644.36
  4. Step 4: Simplify right side
    131,655.08x = 20,908,106,980.91
  5. Step 5: Solve for x
    x = 20,908,106,980.91/131,655.08
  6. Step 6: Final answer
    x = 158,809.72

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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.