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Finding the Fourth Proportional to 108,455.68, 149,671.52 and 60,708.64

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Solution

The fourth proportional to 108,455.68, 149,671.52 and 60,708.64 is: 83,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,455.68 : 149,671.52 = 60,708.64 : x
  2. Step 2: Convert to fraction form
    108,455.68/149,671.52 = 60,708.64/x
  3. Step 3: Cross multiply
    108,455.68x = 149,671.52 × 60,708.64
  4. Step 4: Simplify right side
    108,455.68x = 9,086,354,425.93
  5. Step 5: Solve for x
    x = 9,086,354,425.93/108,455.68
  6. Step 6: Final answer
    x = 83,779.42

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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.