Home / 127,119.08-190,618.01-47,102.15

Finding the Fourth Proportional to 127,119.08, 190,618.01 and 47,102.15

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Solution

The fourth proportional to 127,119.08, 190,618.01 and 47,102.15 is: 70,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,119.08 : 190,618.01 = 47,102.15 : x
  2. Step 2: Convert to fraction form
    127,119.08/190,618.01 = 47,102.15/x
  3. Step 3: Cross multiply
    127,119.08x = 190,618.01 × 47,102.15
  4. Step 4: Simplify right side
    127,119.08x = 8,978,517,864.21
  5. Step 5: Solve for x
    x = 8,978,517,864.21/127,119.08
  6. Step 6: Final answer
    x = 70,630.76

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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.