Home / 122,005.10-183,007.65-80,149.70

Finding the Fourth Proportional to 122,005.10, 183,007.65 and 80,149.70

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Solution

The fourth proportional to 122,005.10, 183,007.65 and 80,149.70 is: 120,224.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,005.10 : 183,007.65 = 80,149.70 : x
  2. Step 2: Convert to fraction form
    122,005.10/183,007.65 = 80,149.70/x
  3. Step 3: Cross multiply
    122,005.10x = 183,007.65 × 80,149.70
  4. Step 4: Simplify right side
    122,005.10x = 14,668,008,245.21
  5. Step 5: Solve for x
    x = 14,668,008,245.21/122,005.10
  6. Step 6: Final answer
    x = 120,224.55

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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.