Home / 180,726.21-271,182.26-86,063.74

Finding the Fourth Proportional to 180,726.21, 271,182.26 and 86,063.74

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Solution

The fourth proportional to 180,726.21, 271,182.26 and 86,063.74 is: 129,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,726.21 : 271,182.26 = 86,063.74 : x
  2. Step 2: Convert to fraction form
    180,726.21/271,182.26 = 86,063.74/x
  3. Step 3: Cross multiply
    180,726.21x = 271,182.26 × 86,063.74
  4. Step 4: Simplify right side
    180,726.21x = 23,338,959,054.46
  5. Step 5: Solve for x
    x = 23,338,959,054.46/180,726.21
  6. Step 6: Final answer
    x = 129,139.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.