Home / 149,127.40-205,692.78-124,530.40

Finding the Fourth Proportional to 149,127.40, 205,692.78 and 124,530.40

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Solution

The fourth proportional to 149,127.40, 205,692.78 and 124,530.40 is: 171,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,127.40 : 205,692.78 = 124,530.40 : x
  2. Step 2: Convert to fraction form
    149,127.40/205,692.78 = 124,530.40/x
  3. Step 3: Cross multiply
    149,127.40x = 205,692.78 × 124,530.40
  4. Step 4: Simplify right side
    149,127.40x = 25,615,004,170.51
  5. Step 5: Solve for x
    x = 25,615,004,170.51/149,127.40
  6. Step 6: Final answer
    x = 171,765.91

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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.