Home / 140,119.39-193,363.15-76,458.25

Finding the Fourth Proportional to 140,119.39, 193,363.15 and 76,458.25

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Solution

The fourth proportional to 140,119.39, 193,363.15 and 76,458.25 is: 105,511.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,119.39 : 193,363.15 = 76,458.25 : x
  2. Step 2: Convert to fraction form
    140,119.39/193,363.15 = 76,458.25/x
  3. Step 3: Cross multiply
    140,119.39x = 193,363.15 × 76,458.25
  4. Step 4: Simplify right side
    140,119.39x = 14,784,208,063.49
  5. Step 5: Solve for x
    x = 14,784,208,063.49/140,119.39
  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.