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Finding the Fourth Proportional to 108,662.64, 149,945.40 and 60,914.40

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Solution

The fourth proportional to 108,662.64, 149,945.40 and 60,914.40 is: 84,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,662.64 : 149,945.40 = 60,914.40 : x
  2. Step 2: Convert to fraction form
    108,662.64/149,945.40 = 60,914.40/x
  3. Step 3: Cross multiply
    108,662.64x = 149,945.40 × 60,914.40
  4. Step 4: Simplify right side
    108,662.64x = 9,133,834,073.76
  5. Step 5: Solve for x
    x = 9,133,834,073.76/108,662.64
  6. Step 6: Final answer
    x = 84,056.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.