Home / 143,013.18-214,387.32-53,005.77

Finding the Fourth Proportional to 143,013.18, 214,387.32 and 53,005.77

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Solution

The fourth proportional to 143,013.18, 214,387.32 and 53,005.77 is: 79,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,013.18 : 214,387.32 = 53,005.77 : x
  2. Step 2: Convert to fraction form
    143,013.18/214,387.32 = 53,005.77/x
  3. Step 3: Cross multiply
    143,013.18x = 214,387.32 × 53,005.77
  4. Step 4: Simplify right side
    143,013.18x = 11,363,764,974.84
  5. Step 5: Solve for x
    x = 11,363,764,974.84/143,013.18
  6. Step 6: Final answer
    x = 79,459.56

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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.