Home / 126,397.87-189,631.90-55,307.77

Finding the Fourth Proportional to 126,397.87, 189,631.90 and 55,307.77

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Solution

The fourth proportional to 126,397.87, 189,631.90 and 55,307.77 is: 82,977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,397.87 : 189,631.90 = 55,307.77 : x
  2. Step 2: Convert to fraction form
    126,397.87/189,631.90 = 55,307.77/x
  3. Step 3: Cross multiply
    126,397.87x = 189,631.90 × 55,307.77
  4. Step 4: Simplify right side
    126,397.87x = 10,488,117,104.92
  5. Step 5: Solve for x
    x = 10,488,117,104.92/126,397.87
  6. Step 6: Final answer
    x = 82,977.01

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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.