Home / 121,944.88-168,272.52-76,000.24

Finding the Fourth Proportional to 121,944.88, 168,272.52 and 76,000.24

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Solution

The fourth proportional to 121,944.88, 168,272.52 and 76,000.24 is: 104,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,944.88 : 168,272.52 = 76,000.24 : x
  2. Step 2: Convert to fraction form
    121,944.88/168,272.52 = 76,000.24/x
  3. Step 3: Cross multiply
    121,944.88x = 168,272.52 × 76,000.24
  4. Step 4: Simplify right side
    121,944.88x = 12,788,751,905.40
  5. Step 5: Solve for x
    x = 12,788,751,905.40/121,944.88
  6. Step 6: Final answer
    x = 104,873.22

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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.