Home / 131,654.08-197,908.80-105,643.36

Finding the Fourth Proportional to 131,654.08, 197,908.80 and 105,643.36

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Solution

The fourth proportional to 131,654.08, 197,908.80 and 105,643.36 is: 158,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.08 : 197,908.80 = 105,643.36 : x
  2. Step 2: Convert to fraction form
    131,654.08/197,908.80 = 105,643.36/x
  3. Step 3: Cross multiply
    131,654.08x = 197,908.80 × 105,643.36
  4. Step 4: Simplify right side
    131,654.08x = 20,907,750,605.57
  5. Step 5: Solve for x
    x = 20,907,750,605.57/131,654.08
  6. Step 6: Final answer
    x = 158,808.22

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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.