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Finding the Fourth Proportional to 145,866.99, 218,781.04 and 40,677.15

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Solution

The fourth proportional to 145,866.99, 218,781.04 and 40,677.15 is: 61,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,866.99 : 218,781.04 = 40,677.15 : x
  2. Step 2: Convert to fraction form
    145,866.99/218,781.04 = 40,677.15/x
  3. Step 3: Cross multiply
    145,866.99x = 218,781.04 × 40,677.15
  4. Step 4: Simplify right side
    145,866.99x = 8,899,388,634.28
  5. Step 5: Solve for x
    x = 8,899,388,634.28/145,866.99
  6. Step 6: Final answer
    x = 61,010.30

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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.