Home / 210,010.78-289,813.71-114,515.43

Finding the Fourth Proportional to 210,010.78, 289,813.71 and 114,515.43

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Solution

The fourth proportional to 210,010.78, 289,813.71 and 114,515.43 is: 158,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,010.78 : 289,813.71 = 114,515.43 : x
  2. Step 2: Convert to fraction form
    210,010.78/289,813.71 = 114,515.43/x
  3. Step 3: Cross multiply
    210,010.78x = 289,813.71 × 114,515.43
  4. Step 4: Simplify right side
    210,010.78x = 33,188,141,620.55
  5. Step 5: Solve for x
    x = 33,188,141,620.55/210,010.78
  6. Step 6: Final answer
    x = 158,030.66

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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.