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Finding the Fourth Proportional to 131,036.70, 196,555.05 and 89,564.70

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Solution

The fourth proportional to 131,036.70, 196,555.05 and 89,564.70 is: 134,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,036.70 : 196,555.05 = 89,564.70 : x
  2. Step 2: Convert to fraction form
    131,036.70/196,555.05 = 89,564.70/x
  3. Step 3: Cross multiply
    131,036.70x = 196,555.05 × 89,564.70
  4. Step 4: Simplify right side
    131,036.70x = 17,604,394,086.74
  5. Step 5: Solve for x
    x = 17,604,394,086.74/131,036.70
  6. Step 6: Final answer
    x = 134,347.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.