Home / 152,315.78-228,528.34-68,068.90

Finding the Fourth Proportional to 152,315.78, 228,528.34 and 68,068.90

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Solution

The fourth proportional to 152,315.78, 228,528.34 and 68,068.90 is: 102,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,315.78 : 228,528.34 = 68,068.90 : x
  2. Step 2: Convert to fraction form
    152,315.78/228,528.34 = 68,068.90/x
  3. Step 3: Cross multiply
    152,315.78x = 228,528.34 × 68,068.90
  4. Step 4: Simplify right side
    152,315.78x = 15,555,672,722.63
  5. Step 5: Solve for x
    x = 15,555,672,722.63/152,315.78
  6. Step 6: Final answer
    x = 102,127.78

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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.