Home / 127,006.78-190,531.23-42,774.07

Finding the Fourth Proportional to 127,006.78, 190,531.23 and 42,774.07

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Solution

The fourth proportional to 127,006.78, 190,531.23 and 42,774.07 is: 64,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,006.78 : 190,531.23 = 42,774.07 : x
  2. Step 2: Convert to fraction form
    127,006.78/190,531.23 = 42,774.07/x
  3. Step 3: Cross multiply
    127,006.78x = 190,531.23 × 42,774.07
  4. Step 4: Simplify right side
    127,006.78x = 8,149,796,169.21
  5. Step 5: Solve for x
    x = 8,149,796,169.21/127,006.78
  6. Step 6: Final answer
    x = 64,168.20

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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.