Home / 115,384.20-173,076.30-70,866.60

Finding the Fourth Proportional to 115,384.20, 173,076.30 and 70,866.60

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Solution

The fourth proportional to 115,384.20, 173,076.30 and 70,866.60 is: 106,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,384.20 : 173,076.30 = 70,866.60 : x
  2. Step 2: Convert to fraction form
    115,384.20/173,076.30 = 70,866.60/x
  3. Step 3: Cross multiply
    115,384.20x = 173,076.30 × 70,866.60
  4. Step 4: Simplify right side
    115,384.20x = 12,265,328,921.58
  5. Step 5: Solve for x
    x = 12,265,328,921.58/115,384.20
  6. Step 6: Final answer
    x = 106,299.90

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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.