Home / 140,121.63-193,366.04-76,458.33

Finding the Fourth Proportional to 140,121.63, 193,366.04 and 76,458.33

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Solution

The fourth proportional to 140,121.63, 193,366.04 and 76,458.33 is: 105,511.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,121.63 : 193,366.04 = 76,458.33 : x
  2. Step 2: Convert to fraction form
    140,121.63/193,366.04 = 76,458.33/x
  3. Step 3: Cross multiply
    140,121.63x = 193,366.04 × 76,458.33
  4. Step 4: Simplify right side
    140,121.63x = 14,784,444,114.82
  5. Step 5: Solve for x
    x = 14,784,444,114.82/140,121.63
  6. Step 6: Final answer
    x = 105,511.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.