Home / 108,120.12-162,157.64-29,215.86

Finding the Fourth Proportional to 108,120.12, 162,157.64 and 29,215.86

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Solution

The fourth proportional to 108,120.12, 162,157.64 and 29,215.86 is: 43,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,120.12 : 162,157.64 = 29,215.86 : x
  2. Step 2: Convert to fraction form
    108,120.12/162,157.64 = 29,215.86/x
  3. Step 3: Cross multiply
    108,120.12x = 162,157.64 × 29,215.86
  4. Step 4: Simplify right side
    108,120.12x = 4,737,574,762.09
  5. Step 5: Solve for x
    x = 4,737,574,762.09/108,120.12
  6. Step 6: Final answer
    x = 43,817.70

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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.