Home / 109,921.88-151,636.38-69,567.64

Finding the Fourth Proportional to 109,921.88, 151,636.38 and 69,567.64

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Solution

The fourth proportional to 109,921.88, 151,636.38 and 69,567.64 is: 95,968.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,921.88 : 151,636.38 = 69,567.64 : x
  2. Step 2: Convert to fraction form
    109,921.88/151,636.38 = 69,567.64/x
  3. Step 3: Cross multiply
    109,921.88x = 151,636.38 × 69,567.64
  4. Step 4: Simplify right side
    109,921.88x = 10,548,985,094.74
  5. Step 5: Solve for x
    x = 10,548,985,094.74/109,921.88
  6. Step 6: Final answer
    x = 95,968.02

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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.