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Finding the Fourth Proportional to 121,150.74, 181,715.72 and 73,753.54

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Solution

The fourth proportional to 121,150.74, 181,715.72 and 73,753.54 is: 110,623.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,150.74 : 181,715.72 = 73,753.54 : x
  2. Step 2: Convert to fraction form
    121,150.74/181,715.72 = 73,753.54/x
  3. Step 3: Cross multiply
    121,150.74x = 181,715.72 × 73,753.54
  4. Step 4: Simplify right side
    121,150.74x = 13,402,177,623.65
  5. Step 5: Solve for x
    x = 13,402,177,623.65/121,150.74
  6. Step 6: Final answer
    x = 110,623.98

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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.