Home / 149,058.56-205,694.89-81,075.44

Finding the Fourth Proportional to 149,058.56, 205,694.89 and 81,075.44

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Solution

The fourth proportional to 149,058.56, 205,694.89 and 81,075.44 is: 111,880.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,058.56 : 205,694.89 = 81,075.44 : x
  2. Step 2: Convert to fraction form
    149,058.56/205,694.89 = 81,075.44/x
  3. Step 3: Cross multiply
    149,058.56x = 205,694.89 × 81,075.44
  4. Step 4: Simplify right side
    149,058.56x = 16,676,803,712.50
  5. Step 5: Solve for x
    x = 16,676,803,712.50/149,058.56
  6. Step 6: Final answer
    x = 111,880.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.