Home / 152,005.32-228,054.12-80,915.85

Finding the Fourth Proportional to 152,005.32, 228,054.12 and 80,915.85

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Solution

The fourth proportional to 152,005.32, 228,054.12 and 80,915.85 is: 121,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,005.32 : 228,054.12 = 80,915.85 : x
  2. Step 2: Convert to fraction form
    152,005.32/228,054.12 = 80,915.85/x
  3. Step 3: Cross multiply
    152,005.32x = 228,054.12 × 80,915.85
  4. Step 4: Simplify right side
    152,005.32x = 18,453,192,965.80
  5. Step 5: Solve for x
    x = 18,453,192,965.80/152,005.32
  6. Step 6: Final answer
    x = 121,398.34

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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.