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Finding the Fourth Proportional to 108,640.37, 163,024.11 and 45,455.19

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Solution

The fourth proportional to 108,640.37, 163,024.11 and 45,455.19 is: 68,209.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,640.37 : 163,024.11 = 45,455.19 : x
  2. Step 2: Convert to fraction form
    108,640.37/163,024.11 = 45,455.19/x
  3. Step 3: Cross multiply
    108,640.37x = 163,024.11 × 45,455.19
  4. Step 4: Simplify right side
    108,640.37x = 7,410,291,894.63
  5. Step 5: Solve for x
    x = 7,410,291,894.63/108,640.37
  6. Step 6: Final answer
    x = 68,209.38

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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.