Home / 185,861.96-256,490.13-105,304.40

Finding the Fourth Proportional to 185,861.96, 256,490.13 and 105,304.40

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Solution

The fourth proportional to 185,861.96, 256,490.13 and 105,304.40 is: 145,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,861.96 : 256,490.13 = 105,304.40 : x
  2. Step 2: Convert to fraction form
    185,861.96/256,490.13 = 105,304.40/x
  3. Step 3: Cross multiply
    185,861.96x = 256,490.13 × 105,304.40
  4. Step 4: Simplify right side
    185,861.96x = 27,009,539,245.57
  5. Step 5: Solve for x
    x = 27,009,539,245.57/185,861.96
  6. Step 6: Final answer
    x = 145,320.43

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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.