Home / 142,788.63-214,022.55-67,847.43

Finding the Fourth Proportional to 142,788.63, 214,022.55 and 67,847.43

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Solution

The fourth proportional to 142,788.63, 214,022.55 and 67,847.43 is: 101,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,788.63 : 214,022.55 = 67,847.43 : x
  2. Step 2: Convert to fraction form
    142,788.63/214,022.55 = 67,847.43/x
  3. Step 3: Cross multiply
    142,788.63x = 214,022.55 × 67,847.43
  4. Step 4: Simplify right side
    142,788.63x = 14,520,879,979.55
  5. Step 5: Solve for x
    x = 14,520,879,979.55/142,788.63
  6. Step 6: Final answer
    x = 101,694.93

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1.5x scale

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.