Home / 131,172.72-196,771.14-56,275.98

Finding the Fourth Proportional to 131,172.72, 196,771.14 and 56,275.98

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Solution

The fourth proportional to 131,172.72, 196,771.14 and 56,275.98 is: 84,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,172.72 : 196,771.14 = 56,275.98 : x
  2. Step 2: Convert to fraction form
    131,172.72/196,771.14 = 56,275.98/x
  3. Step 3: Cross multiply
    131,172.72x = 196,771.14 × 56,275.98
  4. Step 4: Simplify right side
    131,172.72x = 11,073,488,739.22
  5. Step 5: Solve for x
    x = 11,073,488,739.22/131,172.72
  6. Step 6: Final answer
    x = 84,419.14

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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.