Home / 515,167.56-772,742.70-141,190.56

Finding the Fourth Proportional to 515,167.56, 772,742.70 and 141,190.56

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Solution

The fourth proportional to 515,167.56, 772,742.70 and 141,190.56 is: 211,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,167.56 : 772,742.70 = 141,190.56 : x
  2. Step 2: Convert to fraction form
    515,167.56/772,742.70 = 141,190.56/x
  3. Step 3: Cross multiply
    515,167.56x = 772,742.70 × 141,190.56
  4. Step 4: Simplify right side
    515,167.56x = 109,103,974,548.91
  5. Step 5: Solve for x
    x = 109,103,974,548.91/515,167.56
  6. Step 6: Final answer
    x = 211,783.47

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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.