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Finding the Fourth Proportional to 145,865.33, 218,814.41 and 45,995.97

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Solution

The fourth proportional to 145,865.33, 218,814.41 and 45,995.97 is: 68,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.33 : 218,814.41 = 45,995.97 : x
  2. Step 2: Convert to fraction form
    145,865.33/218,814.41 = 45,995.97/x
  3. Step 3: Cross multiply
    145,865.33x = 218,814.41 × 45,995.97
  4. Step 4: Simplify right side
    145,865.33x = 10,064,580,807.95
  5. Step 5: Solve for x
    x = 10,064,580,807.95/145,865.33
  6. Step 6: Final answer
    x = 68,999.13

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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.