Home / 131,782,098.20-181,858,981.68-72,243,288.54

Finding the Fourth Proportional to 131,782,098.20, 181,858,981.68 and 72,243,288.54

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Solution

The fourth proportional to 131,782,098.20, 181,858,981.68 and 72,243,288.54 is: 99,695,566.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,782,098.20 : 181,858,981.68 = 72,243,288.54 : x
  2. Step 2: Convert to fraction form
    131,782,098.20/181,858,981.68 = 72,243,288.54/x
  3. Step 3: Cross multiply
    131,782,098.20x = 181,858,981.68 × 72,243,288.54
  4. Step 4: Simplify right side
    131,782,098.20x = 13,138,090,887,098,816
  5. Step 5: Solve for x
    x = 13,138,090,887,098,816/131,782,098.20
  6. Step 6: Final answer
    x = 99,695,566.14

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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.