Home / 126,709.01-174,878.06-72,261.29

Finding the Fourth Proportional to 126,709.01, 174,878.06 and 72,261.29

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Solution

The fourth proportional to 126,709.01, 174,878.06 and 72,261.29 is: 99,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,709.01 : 174,878.06 = 72,261.29 : x
  2. Step 2: Convert to fraction form
    126,709.01/174,878.06 = 72,261.29/x
  3. Step 3: Cross multiply
    126,709.01x = 174,878.06 × 72,261.29
  4. Step 4: Simplify right side
    126,709.01x = 12,636,914,208.30
  5. Step 5: Solve for x
    x = 12,636,914,208.30/126,709.01
  6. Step 6: Final answer
    x = 99,731.78

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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.