Home / 188,139.69-259,590.09-107,554.20

Finding the Fourth Proportional to 188,139.69, 259,590.09 and 107,554.20

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Solution

The fourth proportional to 188,139.69, 259,590.09 and 107,554.20 is: 148,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,139.69 : 259,590.09 = 107,554.20 : x
  2. Step 2: Convert to fraction form
    188,139.69/259,590.09 = 107,554.20/x
  3. Step 3: Cross multiply
    188,139.69x = 259,590.09 × 107,554.20
  4. Step 4: Simplify right side
    188,139.69x = 27,920,004,457.88
  5. Step 5: Solve for x
    x = 27,920,004,457.88/188,139.69
  6. Step 6: Final answer
    x = 148,400.40

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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.