Home / 118,683.83-178,148.77-79,514.66

Finding the Fourth Proportional to 118,683.83, 178,148.77 and 79,514.66

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Solution

The fourth proportional to 118,683.83, 178,148.77 and 79,514.66 is: 119,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,683.83 : 178,148.77 = 79,514.66 : x
  2. Step 2: Convert to fraction form
    118,683.83/178,148.77 = 79,514.66/x
  3. Step 3: Cross multiply
    118,683.83x = 178,148.77 × 79,514.66
  4. Step 4: Simplify right side
    118,683.83x = 14,165,439,122.55
  5. Step 5: Solve for x
    x = 14,165,439,122.55/118,683.83
  6. Step 6: Final answer
    x = 119,354.41

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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.