Home / 145,385.33-218,012.36-51,893.51

Finding the Fourth Proportional to 145,385.33, 218,012.36 and 51,893.51

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Solution

The fourth proportional to 145,385.33, 218,012.36 and 51,893.51 is: 77,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,385.33 : 218,012.36 = 51,893.51 : x
  2. Step 2: Convert to fraction form
    145,385.33/218,012.36 = 51,893.51/x
  3. Step 3: Cross multiply
    145,385.33x = 218,012.36 × 51,893.51
  4. Step 4: Simplify right side
    145,385.33x = 11,313,425,234.25
  5. Step 5: Solve for x
    x = 11,313,425,234.25/145,385.33
  6. Step 6: Final answer
    x = 77,816.83

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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.