Home / 131,869.28-197,757.36-56,986.40

Finding the Fourth Proportional to 131,869.28, 197,757.36 and 56,986.40

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Solution

The fourth proportional to 131,869.28, 197,757.36 and 56,986.40 is: 85,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,869.28 : 197,757.36 = 56,986.40 : x
  2. Step 2: Convert to fraction form
    131,869.28/197,757.36 = 56,986.40/x
  3. Step 3: Cross multiply
    131,869.28x = 197,757.36 × 56,986.40
  4. Step 4: Simplify right side
    131,869.28x = 11,269,480,019.90
  5. Step 5: Solve for x
    x = 11,269,480,019.90/131,869.28
  6. Step 6: Final answer
    x = 85,459.48

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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.