Home / 211,395.73-316,671.09-127,109.74

Finding the Fourth Proportional to 211,395.73, 316,671.09 and 127,109.74

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Solution

The fourth proportional to 211,395.73, 316,671.09 and 127,109.74 is: 190,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,395.73 : 316,671.09 = 127,109.74 : x
  2. Step 2: Convert to fraction form
    211,395.73/316,671.09 = 127,109.74/x
  3. Step 3: Cross multiply
    211,395.73x = 316,671.09 × 127,109.74
  4. Step 4: Simplify right side
    211,395.73x = 40,251,978,332.06
  5. Step 5: Solve for x
    x = 40,251,978,332.06/211,395.73
  6. Step 6: Final answer
    x = 190,410.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.