Home / 157,385.55-217,181.67-88,485.64

Finding the Fourth Proportional to 157,385.55, 217,181.67 and 88,485.64

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Solution

The fourth proportional to 157,385.55, 217,181.67 and 88,485.64 is: 122,104.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,385.55 : 217,181.67 = 88,485.64 : x
  2. Step 2: Convert to fraction form
    157,385.55/217,181.67 = 88,485.64/x
  3. Step 3: Cross multiply
    157,385.55x = 217,181.67 × 88,485.64
  4. Step 4: Simplify right side
    157,385.55x = 19,217,458,523.26
  5. Step 5: Solve for x
    x = 19,217,458,523.26/157,385.55
  6. Step 6: Final answer
    x = 122,104.34

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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.