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Finding the Fourth Proportional to 127,279.70, 190,919.55 and 97,846.10

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Solution

The fourth proportional to 127,279.70, 190,919.55 and 97,846.10 is: 146,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,279.70 : 190,919.55 = 97,846.10 : x
  2. Step 2: Convert to fraction form
    127,279.70/190,919.55 = 97,846.10/x
  3. Step 3: Cross multiply
    127,279.70x = 190,919.55 × 97,846.10
  4. Step 4: Simplify right side
    127,279.70x = 18,680,733,381.26
  5. Step 5: Solve for x
    x = 18,680,733,381.26/127,279.70
  6. Step 6: Final answer
    x = 146,769.15

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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.