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Finding the Fourth Proportional to 108,289.88, 162,325.74 and 45,144.94

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Solution

The fourth proportional to 108,289.88, 162,325.74 and 45,144.94 is: 67,671.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,289.88 : 162,325.74 = 45,144.94 : x
  2. Step 2: Convert to fraction form
    108,289.88/162,325.74 = 45,144.94/x
  3. Step 3: Cross multiply
    108,289.88x = 162,325.74 × 45,144.94
  4. Step 4: Simplify right side
    108,289.88x = 7,328,185,792.76
  5. Step 5: Solve for x
    x = 7,328,185,792.76/108,289.88
  6. Step 6: Final answer
    x = 67,671.94

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1.5x scale

Why These Related Problems?

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