Home / 127,718.46-191,380.05-87,756.54

Finding the Fourth Proportional to 127,718.46, 191,380.05 and 87,756.54

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Solution

The fourth proportional to 127,718.46, 191,380.05 and 87,756.54 is: 131,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,718.46 : 191,380.05 = 87,756.54 : x
  2. Step 2: Convert to fraction form
    127,718.46/191,380.05 = 87,756.54/x
  3. Step 3: Cross multiply
    127,718.46x = 191,380.05 × 87,756.54
  4. Step 4: Simplify right side
    127,718.46x = 16,794,851,013.03
  5. Step 5: Solve for x
    x = 16,794,851,013.03/127,718.46
  6. Step 6: Final answer
    x = 131,499.01

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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.