Home / 127,106.20-190,659.30-57,122.20

Finding the Fourth Proportional to 127,106.20, 190,659.30 and 57,122.20

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Solution

The fourth proportional to 127,106.20, 190,659.30 and 57,122.20 is: 85,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,106.20 : 190,659.30 = 57,122.20 : x
  2. Step 2: Convert to fraction form
    127,106.20/190,659.30 = 57,122.20/x
  3. Step 3: Cross multiply
    127,106.20x = 190,659.30 × 57,122.20
  4. Step 4: Simplify right side
    127,106.20x = 10,890,878,666.46
  5. Step 5: Solve for x
    x = 10,890,878,666.46/127,106.20
  6. Step 6: Final answer
    x = 85,683.30

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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.