Home / 185,367.42-278,052.55-121,379.45

Finding the Fourth Proportional to 185,367.42, 278,052.55 and 121,379.45

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Solution

The fourth proportional to 185,367.42, 278,052.55 and 121,379.45 is: 182,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,367.42 : 278,052.55 = 121,379.45 : x
  2. Step 2: Convert to fraction form
    185,367.42/278,052.55 = 121,379.45/x
  3. Step 3: Cross multiply
    185,367.42x = 278,052.55 × 121,379.45
  4. Step 4: Simplify right side
    185,367.42x = 33,749,863,896.39
  5. Step 5: Solve for x
    x = 33,749,863,896.39/185,367.42
  6. Step 6: Final answer
    x = 182,070.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.