Home / 109,883.40-164,825.10-71,829.60

Finding the Fourth Proportional to 109,883.40, 164,825.10 and 71,829.60

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Solution

The fourth proportional to 109,883.40, 164,825.10 and 71,829.60 is: 107,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,883.40 : 164,825.10 = 71,829.60 : x
  2. Step 2: Convert to fraction form
    109,883.40/164,825.10 = 71,829.60/x
  3. Step 3: Cross multiply
    109,883.40x = 164,825.10 × 71,829.60
  4. Step 4: Simplify right side
    109,883.40x = 11,839,321,002.96
  5. Step 5: Solve for x
    x = 11,839,321,002.96/109,883.40
  6. Step 6: Final answer
    x = 107,744.40

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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.