Home / 152,408.20-228,612.30-89,422.60

Finding the Fourth Proportional to 152,408.20, 228,612.30 and 89,422.60

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Solution

The fourth proportional to 152,408.20, 228,612.30 and 89,422.60 is: 134,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,408.20 : 228,612.30 = 89,422.60 : x
  2. Step 2: Convert to fraction form
    152,408.20/228,612.30 = 89,422.60/x
  3. Step 3: Cross multiply
    152,408.20x = 228,612.30 × 89,422.60
  4. Step 4: Simplify right side
    152,408.20x = 20,443,106,257.98
  5. Step 5: Solve for x
    x = 20,443,106,257.98/152,408.20
  6. Step 6: Final answer
    x = 134,133.90

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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.