Home / 202,231.60-279,077.76-111,588.40

Finding the Fourth Proportional to 202,231.60, 279,077.76 and 111,588.40

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Solution

The fourth proportional to 202,231.60, 279,077.76 and 111,588.40 is: 153,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,231.60 : 279,077.76 = 111,588.40 : x
  2. Step 2: Convert to fraction form
    202,231.60/279,077.76 = 111,588.40/x
  3. Step 3: Cross multiply
    202,231.60x = 279,077.76 × 111,588.40
  4. Step 4: Simplify right side
    202,231.60x = 31,141,840,713.98
  5. Step 5: Solve for x
    x = 31,141,840,713.98/202,231.60
  6. Step 6: Final answer
    x = 153,990.97

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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.