Home / 194,019.12-291,076.20-67,641.84

Finding the Fourth Proportional to 194,019.12, 291,076.20 and 67,641.84

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Solution

The fourth proportional to 194,019.12, 291,076.20 and 67,641.84 is: 101,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,019.12 : 291,076.20 = 67,641.84 : x
  2. Step 2: Convert to fraction form
    194,019.12/291,076.20 = 67,641.84/x
  3. Step 3: Cross multiply
    194,019.12x = 291,076.20 × 67,641.84
  4. Step 4: Simplify right side
    194,019.12x = 19,688,929,748.21
  5. Step 5: Solve for x
    x = 19,688,929,748.21/194,019.12
  6. Step 6: Final answer
    x = 101,479.33

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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.