Home / 149,619.60-206,477.28-89,225.28

Finding the Fourth Proportional to 149,619.60, 206,477.28 and 89,225.28

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Solution

The fourth proportional to 149,619.60, 206,477.28 and 89,225.28 is: 123,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,619.60 : 206,477.28 = 89,225.28 : x
  2. Step 2: Convert to fraction form
    149,619.60/206,477.28 = 89,225.28/x
  3. Step 3: Cross multiply
    149,619.60x = 206,477.28 × 89,225.28
  4. Step 4: Simplify right side
    149,619.60x = 18,422,993,121.64
  5. Step 5: Solve for x
    x = 18,422,993,121.64/149,619.60
  6. Step 6: Final answer
    x = 123,132.22

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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.