Home / 137,842.56-190,410.48-108,005.40

Finding the Fourth Proportional to 137,842.56, 190,410.48 and 108,005.40

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Solution

The fourth proportional to 137,842.56, 190,410.48 and 108,005.40 is: 149,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,842.56 : 190,410.48 = 108,005.40 : x
  2. Step 2: Convert to fraction form
    137,842.56/190,410.48 = 108,005.40/x
  3. Step 3: Cross multiply
    137,842.56x = 190,410.48 × 108,005.40
  4. Step 4: Simplify right side
    137,842.56x = 20,565,360,056.59
  5. Step 5: Solve for x
    x = 20,565,360,056.59/137,842.56
  6. Step 6: Final answer
    x = 149,194.56

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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.