Home / 108,323,143.57-149,485,938.12-61,914,393.94

Finding the Fourth Proportional to 108,323,143.57, 149,485,938.12 and 61,914,393.94

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Solution

The fourth proportional to 108,323,143.57, 149,485,938.12 and 61,914,393.94 is: 85,441,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,323,143.57 : 149,485,938.12 = 61,914,393.94 : x
  2. Step 2: Convert to fraction form
    108,323,143.57/149,485,938.12 = 61,914,393.94/x
  3. Step 3: Cross multiply
    108,323,143.57x = 149,485,938.12 × 61,914,393.94
  4. Step 4: Simplify right side
    108,323,143.57x = 9,255,331,260,504,714
  5. Step 5: Solve for x
    x = 9,255,331,260,504,714/108,323,143.57
  6. Step 6: Final answer
    x = 85,441,863.63

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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.