Home / 142,050.60-212,930.10-82,855.80

Finding the Fourth Proportional to 142,050.60, 212,930.10 and 82,855.80

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Solution

The fourth proportional to 142,050.60, 212,930.10 and 82,855.80 is: 124,198.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,050.60 : 212,930.10 = 82,855.80 : x
  2. Step 2: Convert to fraction form
    142,050.60/212,930.10 = 82,855.80/x
  3. Step 3: Cross multiply
    142,050.60x = 212,930.10 × 82,855.80
  4. Step 4: Simplify right side
    142,050.60x = 17,642,493,779.58
  5. Step 5: Solve for x
    x = 17,642,493,779.58/142,050.60
  6. Step 6: Final answer
    x = 124,198.66

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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.