Home / 215,075.80-322,597.50-87,000.22

Finding the Fourth Proportional to 215,075.80, 322,597.50 and 87,000.22

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Solution

The fourth proportional to 215,075.80, 322,597.50 and 87,000.22 is: 130,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,075.80 : 322,597.50 = 87,000.22 : x
  2. Step 2: Convert to fraction form
    215,075.80/322,597.50 = 87,000.22/x
  3. Step 3: Cross multiply
    215,075.80x = 322,597.50 × 87,000.22
  4. Step 4: Simplify right side
    215,075.80x = 28,066,053,471.45
  5. Step 5: Solve for x
    x = 28,066,053,471.45/215,075.80
  6. Step 6: Final answer
    x = 130,493.78

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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.