Home / 185,718.84-256,287.30-105,145.80

Finding the Fourth Proportional to 185,718.84, 256,287.30 and 105,145.80

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Solution

The fourth proportional to 185,718.84, 256,287.30 and 105,145.80 is: 145,098.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,718.84 : 256,287.30 = 105,145.80 : x
  2. Step 2: Convert to fraction form
    185,718.84/256,287.30 = 105,145.80/x
  3. Step 3: Cross multiply
    185,718.84x = 256,287.30 × 105,145.80
  4. Step 4: Simplify right side
    185,718.84x = 26,947,533,188.34
  5. Step 5: Solve for x
    x = 26,947,533,188.34/185,718.84
  6. Step 6: Final answer
    x = 145,098.54

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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.