Home / 130,467.64-180,046.06-76,754.68

Finding the Fourth Proportional to 130,467.64, 180,046.06 and 76,754.68

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Solution

The fourth proportional to 130,467.64, 180,046.06 and 76,754.68 is: 105,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,467.64 : 180,046.06 = 76,754.68 : x
  2. Step 2: Convert to fraction form
    130,467.64/180,046.06 = 76,754.68/x
  3. Step 3: Cross multiply
    130,467.64x = 180,046.06 × 76,754.68
  4. Step 4: Simplify right side
    130,467.64x = 13,819,377,720.56
  5. Step 5: Solve for x
    x = 13,819,377,720.56/130,467.64
  6. Step 6: Final answer
    x = 105,921.88

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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.