Home / 211,398.72-316,675.58-127,112.74

Finding the Fourth Proportional to 211,398.72, 316,675.58 and 127,112.74

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Solution

The fourth proportional to 211,398.72, 316,675.58 and 127,112.74 is: 190,415.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,398.72 : 316,675.58 = 127,112.74 : x
  2. Step 2: Convert to fraction form
    211,398.72/316,675.58 = 127,112.74/x
  3. Step 3: Cross multiply
    211,398.72x = 316,675.58 × 127,112.74
  4. Step 4: Simplify right side
    211,398.72x = 40,253,500,664.89
  5. Step 5: Solve for x
    x = 40,253,500,664.89/211,398.72
  6. Step 6: Final answer
    x = 190,415.06

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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.