Home / 141,834.20-212,751.30-78,848.60

Finding the Fourth Proportional to 141,834.20, 212,751.30 and 78,848.60

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Solution

The fourth proportional to 141,834.20, 212,751.30 and 78,848.60 is: 118,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,834.20 : 212,751.30 = 78,848.60 : x
  2. Step 2: Convert to fraction form
    141,834.20/212,751.30 = 78,848.60/x
  3. Step 3: Cross multiply
    141,834.20x = 212,751.30 × 78,848.60
  4. Step 4: Simplify right side
    141,834.20x = 16,775,142,153.18
  5. Step 5: Solve for x
    x = 16,775,142,153.18/141,834.20
  6. Step 6: Final answer
    x = 118,272.90

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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.