Home / 118,035.96-162,849.62-72,078.84

Finding the Fourth Proportional to 118,035.96, 162,849.62 and 72,078.84

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Solution

The fourth proportional to 118,035.96, 162,849.62 and 72,078.84 is: 99,444.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,035.96 : 162,849.62 = 72,078.84 : x
  2. Step 2: Convert to fraction form
    118,035.96/162,849.62 = 72,078.84/x
  3. Step 3: Cross multiply
    118,035.96x = 162,849.62 × 72,078.84
  4. Step 4: Simplify right side
    118,035.96x = 11,738,011,343.65
  5. Step 5: Solve for x
    x = 11,738,011,343.65/118,035.96
  6. Step 6: Final answer
    x = 99,444.37

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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.