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Finding the Fourth Proportional to 115,751.30, 162,285.10 and 115,751.30

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Solution

The fourth proportional to 115,751.30, 162,285.10 and 115,751.30 is: 162,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,751.30 : 162,285.10 = 115,751.30 : x
  2. Step 2: Convert to fraction form
    115,751.30/162,285.10 = 115,751.30/x
  3. Step 3: Cross multiply
    115,751.30x = 162,285.10 × 115,751.30
  4. Step 4: Simplify right side
    115,751.30x = 18,784,711,295.63
  5. Step 5: Solve for x
    x = 18,784,711,295.63/115,751.30
  6. Step 6: Final answer
    x = 162,285.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.