Home / 187,783.56-259,142.52-102,903.66

Finding the Fourth Proportional to 187,783.56, 259,142.52 and 102,903.66

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Solution

The fourth proportional to 187,783.56, 259,142.52 and 102,903.66 is: 142,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,783.56 : 259,142.52 = 102,903.66 : x
  2. Step 2: Convert to fraction form
    187,783.56/259,142.52 = 102,903.66/x
  3. Step 3: Cross multiply
    187,783.56x = 259,142.52 × 102,903.66
  4. Step 4: Simplify right side
    187,783.56x = 26,666,713,769.62
  5. Step 5: Solve for x
    x = 26,666,713,769.62/187,783.56
  6. Step 6: Final answer
    x = 142,007.71

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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.