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Finding the Fourth Proportional to 118,124.20, 176,894.70 and 78,466.60

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Solution

The fourth proportional to 118,124.20, 176,894.70 and 78,466.60 is: 117,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,124.20 : 176,894.70 = 78,466.60 : x
  2. Step 2: Convert to fraction form
    118,124.20/176,894.70 = 78,466.60/x
  3. Step 3: Cross multiply
    118,124.20x = 176,894.70 × 78,466.60
  4. Step 4: Simplify right side
    118,124.20x = 13,880,325,667.02
  5. Step 5: Solve for x
    x = 13,880,325,667.02/118,124.20
  6. Step 6: Final answer
    x = 117,506.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.