Home / 143,763.70-215,543.48-54,942.34

Finding the Fourth Proportional to 143,763.70, 215,543.48 and 54,942.34

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Solution

The fourth proportional to 143,763.70, 215,543.48 and 54,942.34 is: 82,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,763.70 : 215,543.48 = 54,942.34 : x
  2. Step 2: Convert to fraction form
    143,763.70/215,543.48 = 54,942.34/x
  3. Step 3: Cross multiply
    143,763.70x = 215,543.48 × 54,942.34
  4. Step 4: Simplify right side
    143,763.70x = 11,842,462,085.23
  5. Step 5: Solve for x
    x = 11,842,462,085.23/143,763.70
  6. Step 6: Final answer
    x = 82,374.50

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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.