Home / 127,998.43-176,636.60-70,638.28

Finding the Fourth Proportional to 127,998.43, 176,636.60 and 70,638.28

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Solution

The fourth proportional to 127,998.43, 176,636.60 and 70,638.28 is: 97,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,998.43 : 176,636.60 = 70,638.28 : x
  2. Step 2: Convert to fraction form
    127,998.43/176,636.60 = 70,638.28/x
  3. Step 3: Cross multiply
    127,998.43x = 176,636.60 × 70,638.28
  4. Step 4: Simplify right side
    127,998.43x = 12,477,304,372.67
  5. Step 5: Solve for x
    x = 12,477,304,372.67/127,998.43
  6. Step 6: Final answer
    x = 97,480.14

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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.