Home / 160,619.72-221,453.70-103,157.60

Finding the Fourth Proportional to 160,619.72, 221,453.70 and 103,157.60

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Solution

The fourth proportional to 160,619.72, 221,453.70 and 103,157.60 is: 142,228.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,619.72 : 221,453.70 = 103,157.60 : x
  2. Step 2: Convert to fraction form
    160,619.72/221,453.70 = 103,157.60/x
  3. Step 3: Cross multiply
    160,619.72x = 221,453.70 × 103,157.60
  4. Step 4: Simplify right side
    160,619.72x = 22,844,632,203.12
  5. Step 5: Solve for x
    x = 22,844,632,203.12/160,619.72
  6. Step 6: Final answer
    x = 142,228.07

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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.