Home / 139,954.02-209,911.38-40,122.73

Finding the Fourth Proportional to 139,954.02, 209,911.38 and 40,122.73

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Solution

The fourth proportional to 139,954.02, 209,911.38 and 40,122.73 is: 60,178.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,954.02 : 209,911.38 = 40,122.73 : x
  2. Step 2: Convert to fraction form
    139,954.02/209,911.38 = 40,122.73/x
  3. Step 3: Cross multiply
    139,954.02x = 209,911.38 × 40,122.73
  4. Step 4: Simplify right side
    139,954.02x = 8,422,217,623.67
  5. Step 5: Solve for x
    x = 8,422,217,623.67/139,954.02
  6. Step 6: Final answer
    x = 60,178.46

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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.