Home / 127,173.92-190,762.20-38,428.16

Finding the Fourth Proportional to 127,173.92, 190,762.20 and 38,428.16

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Solution

The fourth proportional to 127,173.92, 190,762.20 and 38,428.16 is: 57,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,173.92 : 190,762.20 = 38,428.16 : x
  2. Step 2: Convert to fraction form
    127,173.92/190,762.20 = 38,428.16/x
  3. Step 3: Cross multiply
    127,173.92x = 190,762.20 × 38,428.16
  4. Step 4: Simplify right side
    127,173.92x = 7,330,640,343.55
  5. Step 5: Solve for x
    x = 7,330,640,343.55/127,173.92
  6. Step 6: Final answer
    x = 57,642.64

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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.