Home / 130,408.78-180,074.43-82,746.70

Finding the Fourth Proportional to 130,408.78, 180,074.43 and 82,746.70

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Solution

The fourth proportional to 130,408.78, 180,074.43 and 82,746.70 is: 114,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,408.78 : 180,074.43 = 82,746.70 : x
  2. Step 2: Convert to fraction form
    130,408.78/180,074.43 = 82,746.70/x
  3. Step 3: Cross multiply
    130,408.78x = 180,074.43 × 82,746.70
  4. Step 4: Simplify right side
    130,408.78x = 14,900,564,836.88
  5. Step 5: Solve for x
    x = 14,900,564,836.88/130,408.78
  6. Step 6: Final answer
    x = 114,260.44

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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.