Home / 140,678.64-211,038.82-40,839.66

Finding the Fourth Proportional to 140,678.64, 211,038.82 and 40,839.66

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Solution

The fourth proportional to 140,678.64, 211,038.82 and 40,839.66 is: 61,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,678.64 : 211,038.82 = 40,839.66 : x
  2. Step 2: Convert to fraction form
    140,678.64/211,038.82 = 40,839.66/x
  3. Step 3: Cross multiply
    140,678.64x = 211,038.82 × 40,839.66
  4. Step 4: Simplify right side
    140,678.64x = 8,618,753,553.50
  5. Step 5: Solve for x
    x = 8,618,753,553.50/140,678.64
  6. Step 6: Final answer
    x = 61,265.55

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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.