Home / 126,840.47-175,041.14-76,529.75

Finding the Fourth Proportional to 126,840.47, 175,041.14 and 76,529.75

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Solution

The fourth proportional to 126,840.47, 175,041.14 and 76,529.75 is: 105,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,840.47 : 175,041.14 = 76,529.75 : x
  2. Step 2: Convert to fraction form
    126,840.47/175,041.14 = 76,529.75/x
  3. Step 3: Cross multiply
    126,840.47x = 175,041.14 × 76,529.75
  4. Step 4: Simplify right side
    126,840.47x = 13,395,854,301.27
  5. Step 5: Solve for x
    x = 13,395,854,301.27/126,840.47
  6. Step 6: Final answer
    x = 105,611.83

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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.