Home / 220,216.32-303,915.24-124,720.56

Finding the Fourth Proportional to 220,216.32, 303,915.24 and 124,720.56

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Solution

The fourth proportional to 220,216.32, 303,915.24 and 124,720.56 is: 172,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,216.32 : 303,915.24 = 124,720.56 : x
  2. Step 2: Convert to fraction form
    220,216.32/303,915.24 = 124,720.56/x
  3. Step 3: Cross multiply
    220,216.32x = 303,915.24 × 124,720.56
  4. Step 4: Simplify right side
    220,216.32x = 37,904,478,925.33
  5. Step 5: Solve for x
    x = 37,904,478,925.33/220,216.32
  6. Step 6: Final answer
    x = 172,123.84

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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.