Home / 129,416.73-178,560.21-75,714.94

Finding the Fourth Proportional to 129,416.73, 178,560.21 and 75,714.94

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Solution

The fourth proportional to 129,416.73, 178,560.21 and 75,714.94 is: 104,466.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,416.73 : 178,560.21 = 75,714.94 : x
  2. Step 2: Convert to fraction form
    129,416.73/178,560.21 = 75,714.94/x
  3. Step 3: Cross multiply
    129,416.73x = 178,560.21 × 75,714.94
  4. Step 4: Simplify right side
    129,416.73x = 13,519,675,586.54
  5. Step 5: Solve for x
    x = 13,519,675,586.54/129,416.73
  6. Step 6: Final answer
    x = 104,466.21

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1.5x scale

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.