Home / 141,811.20-212,889.60-140,774.40

Finding the Fourth Proportional to 141,811.20, 212,889.60 and 140,774.40

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Solution

The fourth proportional to 141,811.20, 212,889.60 and 140,774.40 is: 211,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,811.20 : 212,889.60 = 140,774.40 : x
  2. Step 2: Convert to fraction form
    141,811.20/212,889.60 = 140,774.40/x
  3. Step 3: Cross multiply
    141,811.20x = 212,889.60 × 140,774.40
  4. Step 4: Simplify right side
    141,811.20x = 29,969,405,706.24
  5. Step 5: Solve for x
    x = 29,969,405,706.24/141,811.20
  6. Step 6: Final answer
    x = 211,333.14

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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.