Home / 126,714.09-174,815.61-81,385.74

Finding the Fourth Proportional to 126,714.09, 174,815.61 and 81,385.74

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Solution

The fourth proportional to 126,714.09, 174,815.61 and 81,385.74 is: 112,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,714.09 : 174,815.61 = 81,385.74 : x
  2. Step 2: Convert to fraction form
    126,714.09/174,815.61 = 81,385.74/x
  3. Step 3: Cross multiply
    126,714.09x = 174,815.61 × 81,385.74
  4. Step 4: Simplify right side
    126,714.09x = 14,227,497,783.40
  5. Step 5: Solve for x
    x = 14,227,497,783.40/126,714.09
  6. Step 6: Final answer
    x = 112,280.31

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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.