Home / 126,714.40-174,863.64-72,999.28

Finding the Fourth Proportional to 126,714.40, 174,863.64 and 72,999.28

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Solution

The fourth proportional to 126,714.40, 174,863.64 and 72,999.28 is: 100,737.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,714.40 : 174,863.64 = 72,999.28 : x
  2. Step 2: Convert to fraction form
    126,714.40/174,863.64 = 72,999.28/x
  3. Step 3: Cross multiply
    126,714.40x = 174,863.64 × 72,999.28
  4. Step 4: Simplify right side
    126,714.40x = 12,764,919,818.18
  5. Step 5: Solve for x
    x = 12,764,919,818.18/126,714.40
  6. Step 6: Final answer
    x = 100,737.72

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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.