Home / 185,780.95-256,393.53-105,222.80

Finding the Fourth Proportional to 185,780.95, 256,393.53 and 105,222.80

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Solution

The fourth proportional to 185,780.95, 256,393.53 and 105,222.80 is: 145,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,780.95 : 256,393.53 = 105,222.80 : x
  2. Step 2: Convert to fraction form
    185,780.95/256,393.53 = 105,222.80/x
  3. Step 3: Cross multiply
    185,780.95x = 256,393.53 × 105,222.80
  4. Step 4: Simplify right side
    185,780.95x = 26,978,445,769.47
  5. Step 5: Solve for x
    x = 26,978,445,769.47/185,780.95
  6. Step 6: Final answer
    x = 145,216.43

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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.