Home / 220,137.72-303,784.20-124,653.48

Finding the Fourth Proportional to 220,137.72, 303,784.20 and 124,653.48

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Solution

The fourth proportional to 220,137.72, 303,784.20 and 124,653.48 is: 172,018.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,137.72 : 303,784.20 = 124,653.48 : x
  2. Step 2: Convert to fraction form
    220,137.72/303,784.20 = 124,653.48/x
  3. Step 3: Cross multiply
    220,137.72x = 303,784.20 × 124,653.48
  4. Step 4: Simplify right side
    220,137.72x = 37,867,757,699.02
  5. Step 5: Solve for x
    x = 37,867,757,699.02/220,137.72
  6. Step 6: Final answer
    x = 172,018.49

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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.