Home / 146,036.63-201,530.55-78,968.63

Finding the Fourth Proportional to 146,036.63, 201,530.55 and 78,968.63

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Solution

The fourth proportional to 146,036.63, 201,530.55 and 78,968.63 is: 108,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,036.63 : 201,530.55 = 78,968.63 : x
  2. Step 2: Convert to fraction form
    146,036.63/201,530.55 = 78,968.63/x
  3. Step 3: Cross multiply
    146,036.63x = 201,530.55 × 78,968.63
  4. Step 4: Simplify right side
    146,036.63x = 15,914,590,428.99
  5. Step 5: Solve for x
    x = 15,914,590,428.99/146,036.63
  6. Step 6: Final answer
    x = 108,976.71

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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.