Home / 153,771.98-211,890.38-113,421.83

Finding the Fourth Proportional to 153,771.98, 211,890.38 and 113,421.83

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Solution

The fourth proportional to 153,771.98, 211,890.38 and 113,421.83 is: 156,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,771.98 : 211,890.38 = 113,421.83 : x
  2. Step 2: Convert to fraction form
    153,771.98/211,890.38 = 113,421.83/x
  3. Step 3: Cross multiply
    153,771.98x = 211,890.38 × 113,421.83
  4. Step 4: Simplify right side
    153,771.98x = 24,032,993,032.43
  5. Step 5: Solve for x
    x = 24,032,993,032.43/153,771.98
  6. Step 6: Final answer
    x = 156,289.81

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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.