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Finding the Fourth Proportional to 97,491.40, 146,018.40 and 79,995.40

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Solution

The fourth proportional to 97,491.40, 146,018.40 and 79,995.40 is: 119,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,491.40 : 146,018.40 = 79,995.40 : x
  2. Step 2: Convert to fraction form
    97,491.40/146,018.40 = 79,995.40/x
  3. Step 3: Cross multiply
    97,491.40x = 146,018.40 × 79,995.40
  4. Step 4: Simplify right side
    97,491.40x = 11,680,800,315.36
  5. Step 5: Solve for x
    x = 11,680,800,315.36/97,491.40
  6. Step 6: Final answer
    x = 119,813.65

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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.