Home / 105,376.32-158,090.40-74,272.32

Finding the Fourth Proportional to 105,376.32, 158,090.40 and 74,272.32

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Solution

The fourth proportional to 105,376.32, 158,090.40 and 74,272.32 is: 111,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,376.32 : 158,090.40 = 74,272.32 : x
  2. Step 2: Convert to fraction form
    105,376.32/158,090.40 = 74,272.32/x
  3. Step 3: Cross multiply
    105,376.32x = 158,090.40 × 74,272.32
  4. Step 4: Simplify right side
    105,376.32x = 11,741,740,777.73
  5. Step 5: Solve for x
    x = 11,741,740,777.73/105,376.32
  6. Step 6: Final answer
    x = 111,426.75

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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.