Home / 210,459.15-290,422.73-114,947.39

Finding the Fourth Proportional to 210,459.15, 290,422.73 and 114,947.39

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Solution

The fourth proportional to 210,459.15, 290,422.73 and 114,947.39 is: 158,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,459.15 : 290,422.73 = 114,947.39 : x
  2. Step 2: Convert to fraction form
    210,459.15/290,422.73 = 114,947.39/x
  3. Step 3: Cross multiply
    210,459.15x = 290,422.73 × 114,947.39
  4. Step 4: Simplify right side
    210,459.15x = 33,383,332,783.32
  5. Step 5: Solve for x
    x = 33,383,332,783.32/210,459.15
  6. Step 6: Final answer
    x = 158,621.44

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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.