Home / 149,012.45-205,630.92-84,486.03

Finding the Fourth Proportional to 149,012.45, 205,630.92 and 84,486.03

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Solution

The fourth proportional to 149,012.45, 205,630.92 and 84,486.03 is: 116,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,012.45 : 205,630.92 = 84,486.03 : x
  2. Step 2: Convert to fraction form
    149,012.45/205,630.92 = 84,486.03/x
  3. Step 3: Cross multiply
    149,012.45x = 205,630.92 × 84,486.03
  4. Step 4: Simplify right side
    149,012.45x = 17,372,939,304.93
  5. Step 5: Solve for x
    x = 17,372,939,304.93/149,012.45
  6. Step 6: Final answer
    x = 116,587.17

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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.