Home / 127,261.40-190,892.10-120,846.20

Finding the Fourth Proportional to 127,261.40, 190,892.10 and 120,846.20

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Solution

The fourth proportional to 127,261.40, 190,892.10 and 120,846.20 is: 181,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,261.40 : 190,892.10 = 120,846.20 : x
  2. Step 2: Convert to fraction form
    127,261.40/190,892.10 = 120,846.20/x
  3. Step 3: Cross multiply
    127,261.40x = 190,892.10 × 120,846.20
  4. Step 4: Simplify right side
    127,261.40x = 23,068,584,895.02
  5. Step 5: Solve for x
    x = 23,068,584,895.02/127,261.40
  6. Step 6: Final answer
    x = 181,269.30

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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.