Home / 138,261.08-190,698.42-104,270.98

Finding the Fourth Proportional to 138,261.08, 190,698.42 and 104,270.98

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Solution

The fourth proportional to 138,261.08, 190,698.42 and 104,270.98 is: 143,817.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,261.08 : 190,698.42 = 104,270.98 : x
  2. Step 2: Convert to fraction form
    138,261.08/190,698.42 = 104,270.98/x
  3. Step 3: Cross multiply
    138,261.08x = 190,698.42 × 104,270.98
  4. Step 4: Simplify right side
    138,261.08x = 19,884,311,137.85
  5. Step 5: Solve for x
    x = 19,884,311,137.85/138,261.08
  6. Step 6: Final answer
    x = 143,817.13

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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.