Home / 118,870.74-178,131.15-52,249.86

Finding the Fourth Proportional to 118,870.74, 178,131.15 and 52,249.86

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Solution

The fourth proportional to 118,870.74, 178,131.15 and 52,249.86 is: 78,297.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,870.74 : 178,131.15 = 52,249.86 : x
  2. Step 2: Convert to fraction form
    118,870.74/178,131.15 = 52,249.86/x
  3. Step 3: Cross multiply
    118,870.74x = 178,131.15 × 52,249.86
  4. Step 4: Simplify right side
    118,870.74x = 9,307,327,649.14
  5. Step 5: Solve for x
    x = 9,307,327,649.14/118,870.74
  6. Step 6: Final answer
    x = 78,297.89

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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.