Home / 104,374.25-143,947.62-72,619.01

Finding the Fourth Proportional to 104,374.25, 143,947.62 and 72,619.01

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Solution

The fourth proportional to 104,374.25, 143,947.62 and 72,619.01 is: 100,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,374.25 : 143,947.62 = 72,619.01 : x
  2. Step 2: Convert to fraction form
    104,374.25/143,947.62 = 72,619.01/x
  3. Step 3: Cross multiply
    104,374.25x = 143,947.62 × 72,619.01
  4. Step 4: Simplify right side
    104,374.25x = 10,453,332,969.35
  5. Step 5: Solve for x
    x = 10,453,332,969.35/104,374.25
  6. Step 6: Final answer
    x = 100,152.42

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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.