Home / 138,733.20-208,099.80-119,050.20

Finding the Fourth Proportional to 138,733.20, 208,099.80 and 119,050.20

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Solution

The fourth proportional to 138,733.20, 208,099.80 and 119,050.20 is: 178,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,733.20 : 208,099.80 = 119,050.20 : x
  2. Step 2: Convert to fraction form
    138,733.20/208,099.80 = 119,050.20/x
  3. Step 3: Cross multiply
    138,733.20x = 208,099.80 × 119,050.20
  4. Step 4: Simplify right side
    138,733.20x = 24,774,322,809.96
  5. Step 5: Solve for x
    x = 24,774,322,809.96/138,733.20
  6. Step 6: Final answer
    x = 178,575.30

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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.