Home / 185,912.64-256,558.80-105,355.52

Finding the Fourth Proportional to 185,912.64, 256,558.80 and 105,355.52

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Solution

The fourth proportional to 185,912.64, 256,558.80 and 105,355.52 is: 145,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,912.64 : 256,558.80 = 105,355.52 : x
  2. Step 2: Convert to fraction form
    185,912.64/256,558.80 = 105,355.52/x
  3. Step 3: Cross multiply
    185,912.64x = 256,558.80 × 105,355.52
  4. Step 4: Simplify right side
    185,912.64x = 27,029,885,784.58
  5. Step 5: Solve for x
    x = 27,029,885,784.58/185,912.64
  6. Step 6: Final answer
    x = 145,390.25

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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.