Home / 127,998.56-176,636.77-70,638.41

Finding the Fourth Proportional to 127,998.56, 176,636.77 and 70,638.41

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Solution

The fourth proportional to 127,998.56, 176,636.77 and 70,638.41 is: 97,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,998.56 : 176,636.77 = 70,638.41 : x
  2. Step 2: Convert to fraction form
    127,998.56/176,636.77 = 70,638.41/x
  3. Step 3: Cross multiply
    127,998.56x = 176,636.77 × 70,638.41
  4. Step 4: Simplify right side
    127,998.56x = 12,477,340,845.33
  5. Step 5: Solve for x
    x = 12,477,340,845.33/127,998.56
  6. Step 6: Final answer
    x = 97,480.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.