Home / 132,119.37-182,324.25-78,448.50

Finding the Fourth Proportional to 132,119.37, 182,324.25 and 78,448.50

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Solution

The fourth proportional to 132,119.37, 182,324.25 and 78,448.50 is: 108,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,119.37 : 182,324.25 = 78,448.50 : x
  2. Step 2: Convert to fraction form
    132,119.37/182,324.25 = 78,448.50/x
  3. Step 3: Cross multiply
    132,119.37x = 182,324.25 × 78,448.50
  4. Step 4: Simplify right side
    132,119.37x = 14,303,063,926.13
  5. Step 5: Solve for x
    x = 14,303,063,926.13/132,119.37
  6. Step 6: Final answer
    x = 108,258.64

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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.