Home / 131,815.30-197,723.04-76,020.16

Finding the Fourth Proportional to 131,815.30, 197,723.04 and 76,020.16

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Solution

The fourth proportional to 131,815.30, 197,723.04 and 76,020.16 is: 114,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,815.30 : 197,723.04 = 76,020.16 : x
  2. Step 2: Convert to fraction form
    131,815.30/197,723.04 = 76,020.16/x
  3. Step 3: Cross multiply
    131,815.30x = 197,723.04 × 76,020.16
  4. Step 4: Simplify right side
    131,815.30x = 15,030,937,136.49
  5. Step 5: Solve for x
    x = 15,030,937,136.49/131,815.30
  6. Step 6: Final answer
    x = 114,030.29

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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.