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Finding the Fourth Proportional to 116,697.76, 161,072.40 and 79,995.04

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Solution

The fourth proportional to 116,697.76, 161,072.40 and 79,995.04 is: 110,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,697.76 : 161,072.40 = 79,995.04 : x
  2. Step 2: Convert to fraction form
    116,697.76/161,072.40 = 79,995.04/x
  3. Step 3: Cross multiply
    116,697.76x = 161,072.40 × 79,995.04
  4. Step 4: Simplify right side
    116,697.76x = 12,884,993,080.90
  5. Step 5: Solve for x
    x = 12,884,993,080.90/116,697.76
  6. Step 6: Final answer
    x = 110,413.37

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1.5x scale

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.