Home / 141,383.12-212,153.40-120,700.88

Finding the Fourth Proportional to 141,383.12, 212,153.40 and 120,700.88

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Solution

The fourth proportional to 141,383.12, 212,153.40 and 120,700.88 is: 181,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,383.12 : 212,153.40 = 120,700.88 : x
  2. Step 2: Convert to fraction form
    141,383.12/212,153.40 = 120,700.88/x
  3. Step 3: Cross multiply
    141,383.12x = 212,153.40 × 120,700.88
  4. Step 4: Simplify right side
    141,383.12x = 25,607,102,074.99
  5. Step 5: Solve for x
    x = 25,607,102,074.99/141,383.12
  6. Step 6: Final answer
    x = 181,118.52

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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.