Home / 140,977.81-211,479.14-39,776.75

Finding the Fourth Proportional to 140,977.81, 211,479.14 and 39,776.75

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Solution

The fourth proportional to 140,977.81, 211,479.14 and 39,776.75 is: 59,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,977.81 : 211,479.14 = 39,776.75 : x
  2. Step 2: Convert to fraction form
    140,977.81/211,479.14 = 39,776.75/x
  3. Step 3: Cross multiply
    140,977.81x = 211,479.14 × 39,776.75
  4. Step 4: Simplify right side
    140,977.81x = 8,411,951,824.60
  5. Step 5: Solve for x
    x = 8,411,951,824.60/140,977.81
  6. Step 6: Final answer
    x = 59,668.63

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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.