Home / 161,430.92-242,146.60-77,171.28

Finding the Fourth Proportional to 161,430.92, 242,146.60 and 77,171.28

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Solution

The fourth proportional to 161,430.92, 242,146.60 and 77,171.28 is: 115,757.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,430.92 : 242,146.60 = 77,171.28 : x
  2. Step 2: Convert to fraction form
    161,430.92/242,146.60 = 77,171.28/x
  3. Step 3: Cross multiply
    161,430.92x = 242,146.60 × 77,171.28
  4. Step 4: Simplify right side
    161,430.92x = 18,686,763,069.65
  5. Step 5: Solve for x
    x = 18,686,763,069.65/161,430.92
  6. Step 6: Final answer
    x = 115,757.03

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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.