Home / 196,155.21-270,686.21-111,270.45

Finding the Fourth Proportional to 196,155.21, 270,686.21 and 111,270.45

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Solution

The fourth proportional to 196,155.21, 270,686.21 and 111,270.45 is: 153,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,155.21 : 270,686.21 = 111,270.45 : x
  2. Step 2: Convert to fraction form
    196,155.21/270,686.21 = 111,270.45/x
  3. Step 3: Cross multiply
    196,155.21x = 270,686.21 × 111,270.45
  4. Step 4: Simplify right side
    196,155.21x = 30,119,376,395.49
  5. Step 5: Solve for x
    x = 30,119,376,395.49/196,155.21
  6. Step 6: Final answer
    x = 153,548.69

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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.