Home / 134,968.22-186,257.55-74,540.40

Finding the Fourth Proportional to 134,968.22, 186,257.55 and 74,540.40

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Solution

The fourth proportional to 134,968.22, 186,257.55 and 74,540.40 is: 102,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,968.22 : 186,257.55 = 74,540.40 : x
  2. Step 2: Convert to fraction form
    134,968.22/186,257.55 = 74,540.40/x
  3. Step 3: Cross multiply
    134,968.22x = 186,257.55 × 74,540.40
  4. Step 4: Simplify right side
    134,968.22x = 13,883,711,628.03
  5. Step 5: Solve for x
    x = 13,883,711,628.03/134,968.22
  6. Step 6: Final answer
    x = 102,866.52

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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.