Home / 136,742.75-188,714.46-76,325.15

Finding the Fourth Proportional to 136,742.75, 188,714.46 and 76,325.15

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Solution

The fourth proportional to 136,742.75, 188,714.46 and 76,325.15 is: 105,333.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,742.75 : 188,714.46 = 76,325.15 : x
  2. Step 2: Convert to fraction form
    136,742.75/188,714.46 = 76,325.15/x
  3. Step 3: Cross multiply
    136,742.75x = 188,714.46 × 76,325.15
  4. Step 4: Simplify right side
    136,742.75x = 14,403,659,466.67
  5. Step 5: Solve for x
    x = 14,403,659,466.67/136,742.75
  6. Step 6: Final answer
    x = 105,333.99

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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.