Home / 127,938.30-191,907.45-122,106.30

Finding the Fourth Proportional to 127,938.30, 191,907.45 and 122,106.30

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Solution

The fourth proportional to 127,938.30, 191,907.45 and 122,106.30 is: 183,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,938.30 : 191,907.45 = 122,106.30 : x
  2. Step 2: Convert to fraction form
    127,938.30/191,907.45 = 122,106.30/x
  3. Step 3: Cross multiply
    127,938.30x = 191,907.45 × 122,106.30
  4. Step 4: Simplify right side
    127,938.30x = 23,433,108,661.94
  5. Step 5: Solve for x
    x = 23,433,108,661.94/127,938.30
  6. Step 6: Final answer
    x = 183,159.45

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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.