Home / 140,446.16-193,815.68-76,783.94

Finding the Fourth Proportional to 140,446.16, 193,815.68 and 76,783.94

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Solution

The fourth proportional to 140,446.16, 193,815.68 and 76,783.94 is: 105,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,446.16 : 193,815.68 = 76,783.94 : x
  2. Step 2: Convert to fraction form
    140,446.16/193,815.68 = 76,783.94/x
  3. Step 3: Cross multiply
    140,446.16x = 193,815.68 × 76,783.94
  4. Step 4: Simplify right side
    140,446.16x = 14,881,931,544.18
  5. Step 5: Solve for x
    x = 14,881,931,544.18/140,446.16
  6. Step 6: Final answer
    x = 105,961.83

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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.