Home / 202,768.56-279,688.86-130,056.36

Finding the Fourth Proportional to 202,768.56, 279,688.86 and 130,056.36

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Solution

The fourth proportional to 202,768.56, 279,688.86 and 130,056.36 is: 179,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,768.56 : 279,688.86 = 130,056.36 : x
  2. Step 2: Convert to fraction form
    202,768.56/279,688.86 = 130,056.36/x
  3. Step 3: Cross multiply
    202,768.56x = 279,688.86 × 130,056.36
  4. Step 4: Simplify right side
    202,768.56x = 36,375,315,064.15
  5. Step 5: Solve for x
    x = 36,375,315,064.15/202,768.56
  6. Step 6: Final answer
    x = 179,393.27

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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.