Home / 181,218.42-250,083-100,647.36

Finding the Fourth Proportional to 181,218.42, 250,083 and 100,647.36

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Solution

The fourth proportional to 181,218.42, 250,083 and 100,647.36 is: 138,894.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,218.42 : 250,083 = 100,647.36 : x
  2. Step 2: Convert to fraction form
    181,218.42/250,083 = 100,647.36/x
  3. Step 3: Cross multiply
    181,218.42x = 250,083 × 100,647.36
  4. Step 4: Simplify right side
    181,218.42x = 25,170,193,730.88
  5. Step 5: Solve for x
    x = 25,170,193,730.88/181,218.42
  6. Step 6: Final answer
    x = 138,894.23

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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.