Home / 91,723.80-137,585.70-82,866.45

Finding the Fourth Proportional to 91,723.80, 137,585.70 and 82,866.45

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Solution

The fourth proportional to 91,723.80, 137,585.70 and 82,866.45 is: 124,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,723.80 : 137,585.70 = 82,866.45 : x
  2. Step 2: Convert to fraction form
    91,723.80/137,585.70 = 82,866.45/x
  3. Step 3: Cross multiply
    91,723.80x = 137,585.70 × 82,866.45
  4. Step 4: Simplify right side
    91,723.80x = 11,401,238,529.77
  5. Step 5: Solve for x
    x = 11,401,238,529.77/91,723.80
  6. Step 6: Final answer
    x = 124,299.68

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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.