Home / 131,064.28-196,655.26-77,860.22

Finding the Fourth Proportional to 131,064.28, 196,655.26 and 77,860.22

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Solution

The fourth proportional to 131,064.28, 196,655.26 and 77,860.22 is: 116,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,064.28 : 196,655.26 = 77,860.22 : x
  2. Step 2: Convert to fraction form
    131,064.28/196,655.26 = 77,860.22/x
  3. Step 3: Cross multiply
    131,064.28x = 196,655.26 × 77,860.22
  4. Step 4: Simplify right side
    131,064.28x = 15,311,621,882.00
  5. Step 5: Solve for x
    x = 15,311,621,882.00/131,064.28
  6. Step 6: Final answer
    x = 116,825.29

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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.