Home / 126,396.98-189,037.76-112,454.86

Finding the Fourth Proportional to 126,396.98, 189,037.76 and 112,454.86

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Solution

The fourth proportional to 126,396.98, 189,037.76 and 112,454.86 is: 168,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,396.98 : 189,037.76 = 112,454.86 : x
  2. Step 2: Convert to fraction form
    126,396.98/189,037.76 = 112,454.86/x
  3. Step 3: Cross multiply
    126,396.98x = 189,037.76 × 112,454.86
  4. Step 4: Simplify right side
    126,396.98x = 21,258,214,835.51
  5. Step 5: Solve for x
    x = 21,258,214,835.51/126,396.98
  6. Step 6: Final answer
    x = 168,186.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.