Home / 210,128.22-289,971.21-114,634.89

Finding the Fourth Proportional to 210,128.22, 289,971.21 and 114,634.89

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Solution

The fourth proportional to 210,128.22, 289,971.21 and 114,634.89 is: 158,193.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,128.22 : 289,971.21 = 114,634.89 : x
  2. Step 2: Convert to fraction form
    210,128.22/289,971.21 = 114,634.89/x
  3. Step 3: Cross multiply
    210,128.22x = 289,971.21 × 114,634.89
  4. Step 4: Simplify right side
    210,128.22x = 33,240,817,761.52
  5. Step 5: Solve for x
    x = 33,240,817,761.52/210,128.22
  6. Step 6: Final answer
    x = 158,193.02

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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.