Home / 144,087.12-215,840.75-71,821.94

Finding the Fourth Proportional to 144,087.12, 215,840.75 and 71,821.94

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Solution

The fourth proportional to 144,087.12, 215,840.75 and 71,821.94 is: 107,588.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,087.12 : 215,840.75 = 71,821.94 : x
  2. Step 2: Convert to fraction form
    144,087.12/215,840.75 = 71,821.94/x
  3. Step 3: Cross multiply
    144,087.12x = 215,840.75 × 71,821.94
  4. Step 4: Simplify right side
    144,087.12x = 15,502,099,957.74
  5. Step 5: Solve for x
    x = 15,502,099,957.74/144,087.12
  6. Step 6: Final answer
    x = 107,588.38

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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.