Home / 140,157.16-193,399.86-79,735.48

Finding the Fourth Proportional to 140,157.16, 193,399.86 and 79,735.48

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Solution

The fourth proportional to 140,157.16, 193,399.86 and 79,735.48 is: 110,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,157.16 : 193,399.86 = 79,735.48 : x
  2. Step 2: Convert to fraction form
    140,157.16/193,399.86 = 79,735.48/x
  3. Step 3: Cross multiply
    140,157.16x = 193,399.86 × 79,735.48
  4. Step 4: Simplify right side
    140,157.16x = 15,420,830,669.03
  5. Step 5: Solve for x
    x = 15,420,830,669.03/140,157.16
  6. Step 6: Final answer
    x = 110,025.28

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1.5x scale

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.