Home / 139,418.21-209,128.02-34,237.22

Finding the Fourth Proportional to 139,418.21, 209,128.02 and 34,237.22

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Solution

The fourth proportional to 139,418.21, 209,128.02 and 34,237.22 is: 51,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,418.21 : 209,128.02 = 34,237.22 : x
  2. Step 2: Convert to fraction form
    139,418.21/209,128.02 = 34,237.22/x
  3. Step 3: Cross multiply
    139,418.21x = 209,128.02 × 34,237.22
  4. Step 4: Simplify right side
    139,418.21x = 7,159,962,028.90
  5. Step 5: Solve for x
    x = 7,159,962,028.90/139,418.21
  6. Step 6: Final answer
    x = 51,356.00

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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.