Home / 156,540.88-234,598.84-72,115.28

Finding the Fourth Proportional to 156,540.88, 234,598.84 and 72,115.28

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Solution

The fourth proportional to 156,540.88, 234,598.84 and 72,115.28 is: 108,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,540.88 : 234,598.84 = 72,115.28 : x
  2. Step 2: Convert to fraction form
    156,540.88/234,598.84 = 72,115.28/x
  3. Step 3: Cross multiply
    156,540.88x = 234,598.84 × 72,115.28
  4. Step 4: Simplify right side
    156,540.88x = 16,918,161,034.28
  5. Step 5: Solve for x
    x = 16,918,161,034.28/156,540.88
  6. Step 6: Final answer
    x = 108,075.03

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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.