Home / 127,120.02-190,620.78-47,154.78

Finding the Fourth Proportional to 127,120.02, 190,620.78 and 47,154.78

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Solution

The fourth proportional to 127,120.02, 190,620.78 and 47,154.78 is: 70,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,120.02 : 190,620.78 = 47,154.78 : x
  2. Step 2: Convert to fraction form
    127,120.02/190,620.78 = 47,154.78/x
  3. Step 3: Cross multiply
    127,120.02x = 190,620.78 × 47,154.78
  4. Step 4: Simplify right side
    127,120.02x = 8,988,680,944.33
  5. Step 5: Solve for x
    x = 8,988,680,944.33/127,120.02
  6. Step 6: Final answer
    x = 70,710.19

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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.