Home / 130,075.20-195,258.60-100,623.60

Finding the Fourth Proportional to 130,075.20, 195,258.60 and 100,623.60

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Solution

The fourth proportional to 130,075.20, 195,258.60 and 100,623.60 is: 151,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,075.20 : 195,258.60 = 100,623.60 : x
  2. Step 2: Convert to fraction form
    130,075.20/195,258.60 = 100,623.60/x
  3. Step 3: Cross multiply
    130,075.20x = 195,258.60 × 100,623.60
  4. Step 4: Simplify right side
    130,075.20x = 19,647,623,262.96
  5. Step 5: Solve for x
    x = 19,647,623,262.96/130,075.20
  6. Step 6: Final answer
    x = 151,048.19

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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.