Home / 202,212.09-279,051.89-111,573.70

Finding the Fourth Proportional to 202,212.09, 279,051.89 and 111,573.70

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Solution

The fourth proportional to 202,212.09, 279,051.89 and 111,573.70 is: 153,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,212.09 : 279,051.89 = 111,573.70 : x
  2. Step 2: Convert to fraction form
    202,212.09/279,051.89 = 111,573.70/x
  3. Step 3: Cross multiply
    202,212.09x = 279,051.89 × 111,573.70
  4. Step 4: Simplify right side
    202,212.09x = 31,134,850,603.79
  5. Step 5: Solve for x
    x = 31,134,850,603.79/202,212.09
  6. Step 6: Final answer
    x = 153,971.26

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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.