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Finding the Fourth Proportional to 118,111.44, 162,989.60 and 64,395.60

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Solution

The fourth proportional to 118,111.44, 162,989.60 and 64,395.60 is: 88,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,111.44 : 162,989.60 = 64,395.60 : x
  2. Step 2: Convert to fraction form
    118,111.44/162,989.60 = 64,395.60/x
  3. Step 3: Cross multiply
    118,111.44x = 162,989.60 × 64,395.60
  4. Step 4: Simplify right side
    118,111.44x = 10,495,813,085.76
  5. Step 5: Solve for x
    x = 10,495,813,085.76/118,111.44
  6. Step 6: Final answer
    x = 88,863.65

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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.