Home / 122,984.85-168,612.08-120,742.83

Finding the Fourth Proportional to 122,984.85, 168,612.08 and 120,742.83

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Solution

The fourth proportional to 122,984.85, 168,612.08 and 120,742.83 is: 165,538.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,984.85 : 168,612.08 = 120,742.83 : x
  2. Step 2: Convert to fraction form
    122,984.85/168,612.08 = 120,742.83/x
  3. Step 3: Cross multiply
    122,984.85x = 168,612.08 × 120,742.83
  4. Step 4: Simplify right side
    122,984.85x = 20,358,699,107.67
  5. Step 5: Solve for x
    x = 20,358,699,107.67/122,984.85
  6. Step 6: Final answer
    x = 165,538.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.