Home / 127,403.70-190,886.85-83,007.60

Finding the Fourth Proportional to 127,403.70, 190,886.85 and 83,007.60

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Solution

The fourth proportional to 127,403.70, 190,886.85 and 83,007.60 is: 124,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.70 : 190,886.85 = 83,007.60 : x
  2. Step 2: Convert to fraction form
    127,403.70/190,886.85 = 83,007.60/x
  3. Step 3: Cross multiply
    127,403.70x = 190,886.85 × 83,007.60
  4. Step 4: Simplify right side
    127,403.70x = 15,845,059,290.06
  5. Step 5: Solve for x
    x = 15,845,059,290.06/127,403.70
  6. Step 6: Final answer
    x = 124,368.91

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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.