Home / 118,982.48-178,416.31-69,075.14

Finding the Fourth Proportional to 118,982.48, 178,416.31 and 69,075.14

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Solution

The fourth proportional to 118,982.48, 178,416.31 and 69,075.14 is: 103,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,982.48 : 178,416.31 = 69,075.14 : x
  2. Step 2: Convert to fraction form
    118,982.48/178,416.31 = 69,075.14/x
  3. Step 3: Cross multiply
    118,982.48x = 178,416.31 × 69,075.14
  4. Step 4: Simplify right side
    118,982.48x = 12,324,131,591.53
  5. Step 5: Solve for x
    x = 12,324,131,591.53/118,982.48
  6. Step 6: Final answer
    x = 103,579.38

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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.