Home / 169,145.85-253,692.32-74,355.06

Finding the Fourth Proportional to 169,145.85, 253,692.32 and 74,355.06

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Solution

The fourth proportional to 169,145.85, 253,692.32 and 74,355.06 is: 111,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,145.85 : 253,692.32 = 74,355.06 : x
  2. Step 2: Convert to fraction form
    169,145.85/253,692.32 = 74,355.06/x
  3. Step 3: Cross multiply
    169,145.85x = 253,692.32 × 74,355.06
  4. Step 4: Simplify right side
    169,145.85x = 18,863,307,303.36
  5. Step 5: Solve for x
    x = 18,863,307,303.36/169,145.85
  6. Step 6: Final answer
    x = 111,520.96

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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.