Home / 142,563.04-213,418.50-86,232.68

Finding the Fourth Proportional to 142,563.04, 213,418.50 and 86,232.68

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Solution

The fourth proportional to 142,563.04, 213,418.50 and 86,232.68 is: 129,091.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,563.04 : 213,418.50 = 86,232.68 : x
  2. Step 2: Convert to fraction form
    142,563.04/213,418.50 = 86,232.68/x
  3. Step 3: Cross multiply
    142,563.04x = 213,418.50 × 86,232.68
  4. Step 4: Simplify right side
    142,563.04x = 18,403,649,216.58
  5. Step 5: Solve for x
    x = 18,403,649,216.58/142,563.04
  6. Step 6: Final answer
    x = 129,091.31

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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.