Home / 137,059.92-189,182.75-79,712.64

Finding the Fourth Proportional to 137,059.92, 189,182.75 and 79,712.64

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Solution

The fourth proportional to 137,059.92, 189,182.75 and 79,712.64 is: 110,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,059.92 : 189,182.75 = 79,712.64 : x
  2. Step 2: Convert to fraction form
    137,059.92/189,182.75 = 79,712.64/x
  3. Step 3: Cross multiply
    137,059.92x = 189,182.75 × 79,712.64
  4. Step 4: Simplify right side
    137,059.92x = 15,080,256,046.40
  5. Step 5: Solve for x
    x = 15,080,256,046.40/137,059.92
  6. Step 6: Final answer
    x = 110,026.74

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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.