Home / 127,686.33-176,205.71-70,324.56

Finding the Fourth Proportional to 127,686.33, 176,205.71 and 70,324.56

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Solution

The fourth proportional to 127,686.33, 176,205.71 and 70,324.56 is: 97,047.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,686.33 : 176,205.71 = 70,324.56 : x
  2. Step 2: Convert to fraction form
    127,686.33/176,205.71 = 70,324.56/x
  3. Step 3: Cross multiply
    127,686.33x = 176,205.71 × 70,324.56
  4. Step 4: Simplify right side
    127,686.33x = 12,391,589,201.05
  5. Step 5: Solve for x
    x = 12,391,589,201.05/127,686.33
  6. Step 6: Final answer
    x = 97,047.11

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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.