Home / 127,009.98-175,193.45-81,609.94

Finding the Fourth Proportional to 127,009.98, 175,193.45 and 81,609.94

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Solution

The fourth proportional to 127,009.98, 175,193.45 and 81,609.94 is: 112,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,009.98 : 175,193.45 = 81,609.94 : x
  2. Step 2: Convert to fraction form
    127,009.98/175,193.45 = 81,609.94/x
  3. Step 3: Cross multiply
    127,009.98x = 175,193.45 × 81,609.94
  4. Step 4: Simplify right side
    127,009.98x = 14,297,526,942.89
  5. Step 5: Solve for x
    x = 14,297,526,942.89/127,009.98
  6. Step 6: Final answer
    x = 112,570.11

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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.