Home / 137,141.24-189,272.44-76,715.24

Finding the Fourth Proportional to 137,141.24, 189,272.44 and 76,715.24

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Solution

The fourth proportional to 137,141.24, 189,272.44 and 76,715.24 is: 105,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,141.24 : 189,272.44 = 76,715.24 : x
  2. Step 2: Convert to fraction form
    137,141.24/189,272.44 = 76,715.24/x
  3. Step 3: Cross multiply
    137,141.24x = 189,272.44 × 76,715.24
  4. Step 4: Simplify right side
    137,141.24x = 14,520,080,659.99
  5. Step 5: Solve for x
    x = 14,520,080,659.99/137,141.24
  6. Step 6: Final answer
    x = 105,876.84

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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.