Home / 185,783.85-256,381.62-105,211.35

Finding the Fourth Proportional to 185,783.85, 256,381.62 and 105,211.35

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Solution

The fourth proportional to 185,783.85, 256,381.62 and 105,211.35 is: 145,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,783.85 : 256,381.62 = 105,211.35 : x
  2. Step 2: Convert to fraction form
    185,783.85/256,381.62 = 105,211.35/x
  3. Step 3: Cross multiply
    185,783.85x = 256,381.62 × 105,211.35
  4. Step 4: Simplify right side
    185,783.85x = 26,974,256,355.39
  5. Step 5: Solve for x
    x = 26,974,256,355.39/185,783.85
  6. Step 6: Final answer
    x = 145,191.61

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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.