Home / 136,240.53-188,037.93-90,219.03

Finding the Fourth Proportional to 136,240.53, 188,037.93 and 90,219.03

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Solution

The fourth proportional to 136,240.53, 188,037.93 and 90,219.03 is: 124,519.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,240.53 : 188,037.93 = 90,219.03 : x
  2. Step 2: Convert to fraction form
    136,240.53/188,037.93 = 90,219.03/x
  3. Step 3: Cross multiply
    136,240.53x = 188,037.93 × 90,219.03
  4. Step 4: Simplify right side
    136,240.53x = 16,964,599,647.81
  5. Step 5: Solve for x
    x = 16,964,599,647.81/136,240.53
  6. Step 6: Final answer
    x = 124,519.48

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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.