Home / 189,725.72-261,818.30-103,682.80

Finding the Fourth Proportional to 189,725.72, 261,818.30 and 103,682.80

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Solution

The fourth proportional to 189,725.72, 261,818.30 and 103,682.80 is: 143,080.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,725.72 : 261,818.30 = 103,682.80 : x
  2. Step 2: Convert to fraction form
    189,725.72/261,818.30 = 103,682.80/x
  3. Step 3: Cross multiply
    189,725.72x = 261,818.30 × 103,682.80
  4. Step 4: Simplify right side
    189,725.72x = 27,146,054,435.24
  5. Step 5: Solve for x
    x = 27,146,054,435.24/189,725.72
  6. Step 6: Final answer
    x = 143,080.52

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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.