Home / 105,629.96-158,338.32-66,214.75

Finding the Fourth Proportional to 105,629.96, 158,338.32 and 66,214.75

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Solution

The fourth proportional to 105,629.96, 158,338.32 and 66,214.75 is: 99,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,629.96 : 158,338.32 = 66,214.75 : x
  2. Step 2: Convert to fraction form
    105,629.96/158,338.32 = 66,214.75/x
  3. Step 3: Cross multiply
    105,629.96x = 158,338.32 × 66,214.75
  4. Step 4: Simplify right side
    105,629.96x = 10,484,333,017.33
  5. Step 5: Solve for x
    x = 10,484,333,017.33/105,629.96
  6. Step 6: Final answer
    x = 99,255.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.