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Finding the Fourth Proportional to 188,300.90, 259,900.04 and 107,774.89

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Solution

The fourth proportional to 188,300.90, 259,900.04 and 107,774.89 is: 148,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,300.90 : 259,900.04 = 107,774.89 : x
  2. Step 2: Convert to fraction form
    188,300.90/259,900.04 = 107,774.89/x
  3. Step 3: Cross multiply
    188,300.90x = 259,900.04 × 107,774.89
  4. Step 4: Simplify right side
    188,300.90x = 28,010,697,841.68
  5. Step 5: Solve for x
    x = 28,010,697,841.68/188,300.90
  6. Step 6: Final answer
    x = 148,754.98

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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.