Home / 210,899.14-291,040.81-115,405.85

Finding the Fourth Proportional to 210,899.14, 291,040.81 and 115,405.85

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Solution

The fourth proportional to 210,899.14, 291,040.81 and 115,405.85 is: 159,260.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,899.14 : 291,040.81 = 115,405.85 : x
  2. Step 2: Convert to fraction form
    210,899.14/291,040.81 = 115,405.85/x
  3. Step 3: Cross multiply
    210,899.14x = 291,040.81 × 115,405.85
  4. Step 4: Simplify right side
    210,899.14x = 33,587,810,319.02
  5. Step 5: Solve for x
    x = 33,587,810,319.02/210,899.14
  6. Step 6: Final answer
    x = 159,260.06

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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.