Home / 139,822.02-209,740.32-39,996.90

Finding the Fourth Proportional to 139,822.02, 209,740.32 and 39,996.90

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Solution

The fourth proportional to 139,822.02, 209,740.32 and 39,996.90 is: 59,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,822.02 : 209,740.32 = 39,996.90 : x
  2. Step 2: Convert to fraction form
    139,822.02/209,740.32 = 39,996.90/x
  3. Step 3: Cross multiply
    139,822.02x = 209,740.32 × 39,996.90
  4. Step 4: Simplify right side
    139,822.02x = 8,388,962,605.01
  5. Step 5: Solve for x
    x = 8,388,962,605.01/139,822.02
  6. Step 6: Final answer
    x = 59,997.44

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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.