Home / 149,066.32-205,692.80-100,773.30

Finding the Fourth Proportional to 149,066.32, 205,692.80 and 100,773.30

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Solution

The fourth proportional to 149,066.32, 205,692.80 and 100,773.30 is: 139,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,066.32 : 205,692.80 = 100,773.30 : x
  2. Step 2: Convert to fraction form
    149,066.32/205,692.80 = 100,773.30/x
  3. Step 3: Cross multiply
    149,066.32x = 205,692.80 × 100,773.30
  4. Step 4: Simplify right side
    149,066.32x = 20,728,342,242.24
  5. Step 5: Solve for x
    x = 20,728,342,242.24/149,066.32
  6. Step 6: Final answer
    x = 139,054.50

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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.