Home / 215,074.80-322,596-86,999.22

Finding the Fourth Proportional to 215,074.80, 322,596 and 86,999.22

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Solution

The fourth proportional to 215,074.80, 322,596 and 86,999.22 is: 130,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,074.80 : 322,596 = 86,999.22 : x
  2. Step 2: Convert to fraction form
    215,074.80/322,596 = 86,999.22/x
  3. Step 3: Cross multiply
    215,074.80x = 322,596 × 86,999.22
  4. Step 4: Simplify right side
    215,074.80x = 28,065,600,375.12
  5. Step 5: Solve for x
    x = 28,065,600,375.12/215,074.80
  6. Step 6: Final answer
    x = 130,492.28

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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.