Home / 131,840,665.20-181,923,395.04-72,286,288.92

Finding the Fourth Proportional to 131,840,665.20, 181,923,395.04 and 72,286,288.92

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Solution

The fourth proportional to 131,840,665.20, 181,923,395.04 and 72,286,288.92 is: 99,745,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,840,665.20 : 181,923,395.04 = 72,286,288.92 : x
  2. Step 2: Convert to fraction form
    131,840,665.20/181,923,395.04 = 72,286,288.92/x
  3. Step 3: Cross multiply
    131,840,665.20x = 181,923,395.04 × 72,286,288.92
  4. Step 4: Simplify right side
    131,840,665.20x = 13,150,567,095,168,734
  5. Step 5: Solve for x
    x = 13,150,567,095,168,734/131,840,665.20
  6. Step 6: Final answer
    x = 99,745,909.77

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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.