Home / 193,890.75-291,108.62-99,188.87

Finding the Fourth Proportional to 193,890.75, 291,108.62 and 99,188.87

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Solution

The fourth proportional to 193,890.75, 291,108.62 and 99,188.87 is: 148,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,890.75 : 291,108.62 = 99,188.87 : x
  2. Step 2: Convert to fraction form
    193,890.75/291,108.62 = 99,188.87/x
  3. Step 3: Cross multiply
    193,890.75x = 291,108.62 × 99,188.87
  4. Step 4: Simplify right side
    193,890.75x = 28,874,733,113.57
  5. Step 5: Solve for x
    x = 28,874,733,113.57/193,890.75
  6. Step 6: Final answer
    x = 148,922.70

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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.