Home / 160,431.54-221,407.81-91,522.52

Finding the Fourth Proportional to 160,431.54, 221,407.81 and 91,522.52

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Solution

The fourth proportional to 160,431.54, 221,407.81 and 91,522.52 is: 126,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,431.54 : 221,407.81 = 91,522.52 : x
  2. Step 2: Convert to fraction form
    160,431.54/221,407.81 = 91,522.52/x
  3. Step 3: Cross multiply
    160,431.54x = 221,407.81 × 91,522.52
  4. Step 4: Simplify right side
    160,431.54x = 20,263,800,213.32
  5. Step 5: Solve for x
    x = 20,263,800,213.32/160,431.54
  6. Step 6: Final answer
    x = 126,308.09

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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.