Home / 185,863.46-256,492.20-105,305.90

Finding the Fourth Proportional to 185,863.46, 256,492.20 and 105,305.90

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Solution

The fourth proportional to 185,863.46, 256,492.20 and 105,305.90 is: 145,322.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,863.46 : 256,492.20 = 105,305.90 : x
  2. Step 2: Convert to fraction form
    185,863.46/256,492.20 = 105,305.90/x
  3. Step 3: Cross multiply
    185,863.46x = 256,492.20 × 105,305.90
  4. Step 4: Simplify right side
    185,863.46x = 27,010,141,963.98
  5. Step 5: Solve for x
    x = 27,010,141,963.98/185,863.46
  6. Step 6: Final answer
    x = 145,322.50

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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.