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Finding the Fourth Proportional to 151,617.69, 209,299.66 and 97,928.89

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Solution

The fourth proportional to 151,617.69, 209,299.66 and 97,928.89 is: 135,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,617.69 : 209,299.66 = 97,928.89 : x
  2. Step 2: Convert to fraction form
    151,617.69/209,299.66 = 97,928.89/x
  3. Step 3: Cross multiply
    151,617.69x = 209,299.66 × 97,928.89
  4. Step 4: Simplify right side
    151,617.69x = 20,496,483,381.18
  5. Step 5: Solve for x
    x = 20,496,483,381.18/151,617.69
  6. Step 6: Final answer
    x = 135,185.30

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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.