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Finding the Fourth Proportional to 118,340.66, 163,311.45 and 64,626.32

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Solution

The fourth proportional to 118,340.66, 163,311.45 and 64,626.32 is: 89,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,340.66 : 163,311.45 = 64,626.32 : x
  2. Step 2: Convert to fraction form
    118,340.66/163,311.45 = 64,626.32/x
  3. Step 3: Cross multiply
    118,340.66x = 163,311.45 × 64,626.32
  4. Step 4: Simplify right side
    118,340.66x = 10,554,218,027.36
  5. Step 5: Solve for x
    x = 10,554,218,027.36/118,340.66
  6. Step 6: Final answer
    x = 89,185.05

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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.