Home / 131,017.28-196,589.10-64,421.24

Finding the Fourth Proportional to 131,017.28, 196,589.10 and 64,421.24

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Solution

The fourth proportional to 131,017.28, 196,589.10 and 64,421.24 is: 96,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,017.28 : 196,589.10 = 64,421.24 : x
  2. Step 2: Convert to fraction form
    131,017.28/196,589.10 = 64,421.24/x
  3. Step 3: Cross multiply
    131,017.28x = 196,589.10 × 64,421.24
  4. Step 4: Simplify right side
    131,017.28x = 12,664,513,592.48
  5. Step 5: Solve for x
    x = 12,664,513,592.48/131,017.28
  6. Step 6: Final answer
    x = 96,662.93

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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.