Home / 147,309.19-203,288.07-83,648.32

Finding the Fourth Proportional to 147,309.19, 203,288.07 and 83,648.32

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Solution

The fourth proportional to 147,309.19, 203,288.07 and 83,648.32 is: 115,435.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,309.19 : 203,288.07 = 83,648.32 : x
  2. Step 2: Convert to fraction form
    147,309.19/203,288.07 = 83,648.32/x
  3. Step 3: Cross multiply
    147,309.19x = 203,288.07 × 83,648.32
  4. Step 4: Simplify right side
    147,309.19x = 17,004,705,531.54
  5. Step 5: Solve for x
    x = 17,004,705,531.54/147,309.19
  6. Step 6: Final answer
    x = 115,435.47

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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.