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Finding the Fourth Proportional to 181,351.74, 250,271.70 and 100,782.66

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Solution

The fourth proportional to 181,351.74, 250,271.70 and 100,782.66 is: 139,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,351.74 : 250,271.70 = 100,782.66 : x
  2. Step 2: Convert to fraction form
    181,351.74/250,271.70 = 100,782.66/x
  3. Step 3: Cross multiply
    181,351.74x = 250,271.70 × 100,782.66
  4. Step 4: Simplify right side
    181,351.74x = 25,223,047,648.72
  5. Step 5: Solve for x
    x = 25,223,047,648.72/181,351.74
  6. Step 6: Final answer
    x = 139,083.57

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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.