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Finding the Fourth Proportional to 97,298.69, 134,221.10 and 79,169.67

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Solution

The fourth proportional to 97,298.69, 134,221.10 and 79,169.67 is: 109,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,298.69 : 134,221.10 = 79,169.67 : x
  2. Step 2: Convert to fraction form
    97,298.69/134,221.10 = 79,169.67/x
  3. Step 3: Cross multiply
    97,298.69x = 134,221.10 × 79,169.67
  4. Step 4: Simplify right side
    97,298.69x = 10,626,239,798.19
  5. Step 5: Solve for x
    x = 10,626,239,798.19/97,298.69
  6. Step 6: Final answer
    x = 109,212.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.