Home / 140,769.81-211,168.12-39,567.60

Finding the Fourth Proportional to 140,769.81, 211,168.12 and 39,567.60

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Solution

The fourth proportional to 140,769.81, 211,168.12 and 39,567.60 is: 59,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,769.81 : 211,168.12 = 39,567.60 : x
  2. Step 2: Convert to fraction form
    140,769.81/211,168.12 = 39,567.60/x
  3. Step 3: Cross multiply
    140,769.81x = 211,168.12 × 39,567.60
  4. Step 4: Simplify right side
    140,769.81x = 8,355,415,605.99
  5. Step 5: Solve for x
    x = 8,355,415,605.99/140,769.81
  6. Step 6: Final answer
    x = 59,355.17

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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.