Home / 103,043.35-154,336.68-79,175.23

Finding the Fourth Proportional to 103,043.35, 154,336.68 and 79,175.23

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Solution

The fourth proportional to 103,043.35, 154,336.68 and 79,175.23 is: 118,587.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,043.35 : 154,336.68 = 79,175.23 : x
  2. Step 2: Convert to fraction form
    103,043.35/154,336.68 = 79,175.23/x
  3. Step 3: Cross multiply
    103,043.35x = 154,336.68 × 79,175.23
  4. Step 4: Simplify right side
    103,043.35x = 12,219,642,136.44
  5. Step 5: Solve for x
    x = 12,219,642,136.44/103,043.35
  6. Step 6: Final answer
    x = 118,587.39

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Double scale
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1.5x scale

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.