Home / 185,780.28-256,392.59-105,222.13

Finding the Fourth Proportional to 185,780.28, 256,392.59 and 105,222.13

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Solution

The fourth proportional to 185,780.28, 256,392.59 and 105,222.13 is: 145,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,780.28 : 256,392.59 = 105,222.13 : x
  2. Step 2: Convert to fraction form
    185,780.28/256,392.59 = 105,222.13/x
  3. Step 3: Cross multiply
    185,780.28x = 256,392.59 × 105,222.13
  4. Step 4: Simplify right side
    185,780.28x = 26,978,174,436.02
  5. Step 5: Solve for x
    x = 26,978,174,436.02/185,780.28
  6. Step 6: Final answer
    x = 145,215.49

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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.