Home / 140,770.81-211,187.36-77,558.38

Finding the Fourth Proportional to 140,770.81, 211,187.36 and 77,558.38

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Solution

The fourth proportional to 140,770.81, 211,187.36 and 77,558.38 is: 116,354.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,770.81 : 211,187.36 = 77,558.38 : x
  2. Step 2: Convert to fraction form
    140,770.81/211,187.36 = 77,558.38/x
  3. Step 3: Cross multiply
    140,770.81x = 211,187.36 × 77,558.38
  4. Step 4: Simplify right side
    140,770.81x = 16,379,349,184.00
  5. Step 5: Solve for x
    x = 16,379,349,184.00/140,770.81
  6. Step 6: Final answer
    x = 116,354.73

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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.