Home / 147,012.47-202,845.92-86,561.06

Finding the Fourth Proportional to 147,012.47, 202,845.92 and 86,561.06

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Solution

The fourth proportional to 147,012.47, 202,845.92 and 86,561.06 is: 119,435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,012.47 : 202,845.92 = 86,561.06 : x
  2. Step 2: Convert to fraction form
    147,012.47/202,845.92 = 86,561.06/x
  3. Step 3: Cross multiply
    147,012.47x = 202,845.92 × 86,561.06
  4. Step 4: Simplify right side
    147,012.47x = 17,558,556,891.75
  5. Step 5: Solve for x
    x = 17,558,556,891.75/147,012.47
  6. Step 6: Final answer
    x = 119,435.83

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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.