Home / 193,600.80-290,012.40-130,615.20

Finding the Fourth Proportional to 193,600.80, 290,012.40 and 130,615.20

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Solution

The fourth proportional to 193,600.80, 290,012.40 and 130,615.20 is: 195,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,600.80 : 290,012.40 = 130,615.20 : x
  2. Step 2: Convert to fraction form
    193,600.80/290,012.40 = 130,615.20/x
  3. Step 3: Cross multiply
    193,600.80x = 290,012.40 × 130,615.20
  4. Step 4: Simplify right side
    193,600.80x = 37,880,027,628.48
  5. Step 5: Solve for x
    x = 37,880,027,628.48/193,600.80
  6. Step 6: Final answer
    x = 195,660.49

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1.5x scale

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.