Home / 131,782,081.30-181,858,958.39-72,243,271.67

Finding the Fourth Proportional to 131,782,081.30, 181,858,958.39 and 72,243,271.67

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Solution

The fourth proportional to 131,782,081.30, 181,858,958.39 and 72,243,271.67 is: 99,695,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,782,081.30 : 181,858,958.39 = 72,243,271.67 : x
  2. Step 2: Convert to fraction form
    131,782,081.30/181,858,958.39 = 72,243,271.67/x
  3. Step 3: Cross multiply
    131,782,081.30x = 181,858,958.39 × 72,243,271.67
  4. Step 4: Simplify right side
    131,782,081.30x = 13,138,086,135,863,312
  5. Step 5: Solve for x
    x = 13,138,086,135,863,312/131,782,081.30
  6. Step 6: Final answer
    x = 99,695,542.87

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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.