Home / 181,738.68-272,516.40-105,861.66

Finding the Fourth Proportional to 181,738.68, 272,516.40 and 105,861.66

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Solution

The fourth proportional to 181,738.68, 272,516.40 and 105,861.66 is: 158,739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,738.68 : 272,516.40 = 105,861.66 : x
  2. Step 2: Convert to fraction form
    181,738.68/272,516.40 = 105,861.66/x
  3. Step 3: Cross multiply
    181,738.68x = 272,516.40 × 105,861.66
  4. Step 4: Simplify right side
    181,738.68x = 28,849,038,481.22
  5. Step 5: Solve for x
    x = 28,849,038,481.22/181,738.68
  6. Step 6: Final answer
    x = 158,739.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.