Home / 188,519.60-260,162.01-103,638.80

Finding the Fourth Proportional to 188,519.60, 260,162.01 and 103,638.80

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Solution

The fourth proportional to 188,519.60, 260,162.01 and 103,638.80 is: 143,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,519.60 : 260,162.01 = 103,638.80 : x
  2. Step 2: Convert to fraction form
    188,519.60/260,162.01 = 103,638.80/x
  3. Step 3: Cross multiply
    188,519.60x = 260,162.01 × 103,638.80
  4. Step 4: Simplify right side
    188,519.60x = 26,962,877,221.18
  5. Step 5: Solve for x
    x = 26,962,877,221.18/188,519.60
  6. Step 6: Final answer
    x = 143,024.27

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1.5x scale

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.