Home / 126,902.97-175,205.73-81,659.58

Finding the Fourth Proportional to 126,902.97, 175,205.73 and 81,659.58

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Solution

The fourth proportional to 126,902.97, 175,205.73 and 81,659.58 is: 112,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,902.97 : 175,205.73 = 81,659.58 : x
  2. Step 2: Convert to fraction form
    126,902.97/175,205.73 = 81,659.58/x
  3. Step 3: Cross multiply
    126,902.97x = 175,205.73 × 81,659.58
  4. Step 4: Simplify right side
    126,902.97x = 14,307,226,544.40
  5. Step 5: Solve for x
    x = 14,307,226,544.40/126,902.97
  6. Step 6: Final answer
    x = 112,741.46

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1.5x scale

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.