Home / 196,303.30-270,899.85-111,421.78

Finding the Fourth Proportional to 196,303.30, 270,899.85 and 111,421.78

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Solution

The fourth proportional to 196,303.30, 270,899.85 and 111,421.78 is: 153,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,303.30 : 270,899.85 = 111,421.78 : x
  2. Step 2: Convert to fraction form
    196,303.30/270,899.85 = 111,421.78/x
  3. Step 3: Cross multiply
    196,303.30x = 270,899.85 × 111,421.78
  4. Step 4: Simplify right side
    196,303.30x = 30,184,143,488.73
  5. Step 5: Solve for x
    x = 30,184,143,488.73/196,303.30
  6. Step 6: Final answer
    x = 153,762.79

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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.