Home / 126,840.35-175,040.96-76,529.63

Finding the Fourth Proportional to 126,840.35, 175,040.96 and 76,529.63

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Solution

The fourth proportional to 126,840.35, 175,040.96 and 76,529.63 is: 105,611.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,840.35 : 175,040.96 = 76,529.63 : x
  2. Step 2: Convert to fraction form
    126,840.35/175,040.96 = 76,529.63/x
  3. Step 3: Cross multiply
    126,840.35x = 175,040.96 × 76,529.63
  4. Step 4: Simplify right side
    126,840.35x = 13,395,819,219.76
  5. Step 5: Solve for x
    x = 13,395,819,219.76/126,840.35
  6. Step 6: Final answer
    x = 105,611.66

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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.