Home / 132,701.40-199,052.10-76,714.20

Finding the Fourth Proportional to 132,701.40, 199,052.10 and 76,714.20

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Solution

The fourth proportional to 132,701.40, 199,052.10 and 76,714.20 is: 115,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,701.40 : 199,052.10 = 76,714.20 : x
  2. Step 2: Convert to fraction form
    132,701.40/199,052.10 = 76,714.20/x
  3. Step 3: Cross multiply
    132,701.40x = 199,052.10 × 76,714.20
  4. Step 4: Simplify right side
    132,701.40x = 15,270,122,609.82
  5. Step 5: Solve for x
    x = 15,270,122,609.82/132,701.40
  6. Step 6: Final answer
    x = 115,071.30

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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.