Home / 151,947.38-209,687.39-84,879.38

Finding the Fourth Proportional to 151,947.38, 209,687.39 and 84,879.38

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Solution

The fourth proportional to 151,947.38, 209,687.39 and 84,879.38 is: 117,133.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,947.38 : 209,687.39 = 84,879.38 : x
  2. Step 2: Convert to fraction form
    151,947.38/209,687.39 = 84,879.38/x
  3. Step 3: Cross multiply
    151,947.38x = 209,687.39 × 84,879.38
  4. Step 4: Simplify right side
    151,947.38x = 17,798,134,184.18
  5. Step 5: Solve for x
    x = 17,798,134,184.18/151,947.38
  6. Step 6: Final answer
    x = 117,133.54

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1.5x scale

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.