Home / 130,274.16-195,441.92-103,720.56

Finding the Fourth Proportional to 130,274.16, 195,441.92 and 103,720.56

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Solution

The fourth proportional to 130,274.16, 195,441.92 and 103,720.56 is: 155,605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,274.16 : 195,441.92 = 103,720.56 : x
  2. Step 2: Convert to fraction form
    130,274.16/195,441.92 = 103,720.56/x
  3. Step 3: Cross multiply
    130,274.16x = 195,441.92 × 103,720.56
  4. Step 4: Simplify right side
    130,274.16x = 20,271,345,389.88
  5. Step 5: Solve for x
    x = 20,271,345,389.88/130,274.16
  6. Step 6: Final answer
    x = 155,605.27

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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.