Home / 127,999.80-191,562.30-112,253.40

Finding the Fourth Proportional to 127,999.80, 191,562.30 and 112,253.40

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Solution

The fourth proportional to 127,999.80, 191,562.30 and 112,253.40 is: 167,996.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,999.80 : 191,562.30 = 112,253.40 : x
  2. Step 2: Convert to fraction form
    127,999.80/191,562.30 = 112,253.40/x
  3. Step 3: Cross multiply
    127,999.80x = 191,562.30 × 112,253.40
  4. Step 4: Simplify right side
    127,999.80x = 21,503,519,486.82
  5. Step 5: Solve for x
    x = 21,503,519,486.82/127,999.80
  6. Step 6: Final answer
    x = 167,996.51

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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.