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Finding the Fourth Proportional to 118,653, 163,739.88 and 67,674.06

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Solution

The fourth proportional to 118,653, 163,739.88 and 67,674.06 is: 93,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,653 : 163,739.88 = 67,674.06 : x
  2. Step 2: Convert to fraction form
    118,653/163,739.88 = 67,674.06/x
  3. Step 3: Cross multiply
    118,653x = 163,739.88 × 67,674.06
  4. Step 4: Simplify right side
    118,653x = 11,080,942,463.51
  5. Step 5: Solve for x
    x = 11,080,942,463.51/118,653
  6. Step 6: Final answer
    x = 93,389.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.