Home / 127,106.51-190,661.04-38,360.75

Finding the Fourth Proportional to 127,106.51, 190,661.04 and 38,360.75

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Solution

The fourth proportional to 127,106.51, 190,661.04 and 38,360.75 is: 57,541.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,106.51 : 190,661.04 = 38,360.75 : x
  2. Step 2: Convert to fraction form
    127,106.51/190,661.04 = 38,360.75/x
  3. Step 3: Cross multiply
    127,106.51x = 190,661.04 × 38,360.75
  4. Step 4: Simplify right side
    127,106.51x = 7,313,899,536.87
  5. Step 5: Solve for x
    x = 7,313,899,536.87/127,106.51
  6. Step 6: Final answer
    x = 57,541.50

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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.