Home / 149,261.49-205,914.29-100,847.84

Finding the Fourth Proportional to 149,261.49, 205,914.29 and 100,847.84

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Solution

The fourth proportional to 149,261.49, 205,914.29 and 100,847.84 is: 139,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,261.49 : 205,914.29 = 100,847.84 : x
  2. Step 2: Convert to fraction form
    149,261.49/205,914.29 = 100,847.84/x
  3. Step 3: Cross multiply
    149,261.49x = 205,914.29 × 100,847.84
  4. Step 4: Simplify right side
    149,261.49x = 20,766,009,837.82
  5. Step 5: Solve for x
    x = 20,766,009,837.82/149,261.49
  6. Step 6: Final answer
    x = 139,125.03

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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.