Home / 117,272.58-161,852.49-87,150.30

Finding the Fourth Proportional to 117,272.58, 161,852.49 and 87,150.30

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Solution

The fourth proportional to 117,272.58, 161,852.49 and 87,150.30 is: 120,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,272.58 : 161,852.49 = 87,150.30 : x
  2. Step 2: Convert to fraction form
    117,272.58/161,852.49 = 87,150.30/x
  3. Step 3: Cross multiply
    117,272.58x = 161,852.49 × 87,150.30
  4. Step 4: Simplify right side
    117,272.58x = 14,105,493,059.25
  5. Step 5: Solve for x
    x = 14,105,493,059.25/117,272.58
  6. Step 6: Final answer
    x = 120,279.55

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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.