Home / 128,767.32-193,036.50-48,749.58

Finding the Fourth Proportional to 128,767.32, 193,036.50 and 48,749.58

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Solution

The fourth proportional to 128,767.32, 193,036.50 and 48,749.58 is: 73,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,767.32 : 193,036.50 = 48,749.58 : x
  2. Step 2: Convert to fraction form
    128,767.32/193,036.50 = 48,749.58/x
  3. Step 3: Cross multiply
    128,767.32x = 193,036.50 × 48,749.58
  4. Step 4: Simplify right side
    128,767.32x = 9,410,448,299.67
  5. Step 5: Solve for x
    x = 9,410,448,299.67/128,767.32
  6. Step 6: Final answer
    x = 73,081.03

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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.