Home / 74,930.20-112,395.30-70,847.80

Finding the Fourth Proportional to 74,930.20, 112,395.30 and 70,847.80

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Solution

The fourth proportional to 74,930.20, 112,395.30 and 70,847.80 is: 106,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.20 : 112,395.30 = 70,847.80 : x
  2. Step 2: Convert to fraction form
    74,930.20/112,395.30 = 70,847.80/x
  3. Step 3: Cross multiply
    74,930.20x = 112,395.30 × 70,847.80
  4. Step 4: Simplify right side
    74,930.20x = 7,962,959,735.34
  5. Step 5: Solve for x
    x = 7,962,959,735.34/74,930.20
  6. Step 6: Final answer
    x = 106,271.70

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1.5x scale

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.