Home / 210,705.44-290,719.53-124,660.35

Finding the Fourth Proportional to 210,705.44, 290,719.53 and 124,660.35

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Solution

The fourth proportional to 210,705.44, 290,719.53 and 124,660.35 is: 171,999.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,705.44 : 290,719.53 = 124,660.35 : x
  2. Step 2: Convert to fraction form
    210,705.44/290,719.53 = 124,660.35/x
  3. Step 3: Cross multiply
    210,705.44x = 290,719.53 × 124,660.35
  4. Step 4: Simplify right side
    210,705.44x = 36,241,198,361.64
  5. Step 5: Solve for x
    x = 36,241,198,361.64/210,705.44
  6. Step 6: Final answer
    x = 171,999.35

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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.