Home / 143,564.61-215,434.05-53,672.77

Finding the Fourth Proportional to 143,564.61, 215,434.05 and 53,672.77

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Solution

The fourth proportional to 143,564.61, 215,434.05 and 53,672.77 is: 80,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,564.61 : 215,434.05 = 53,672.77 : x
  2. Step 2: Convert to fraction form
    143,564.61/215,434.05 = 53,672.77/x
  3. Step 3: Cross multiply
    143,564.61x = 215,434.05 × 53,672.77
  4. Step 4: Simplify right side
    143,564.61x = 11,562,942,215.82
  5. Step 5: Solve for x
    x = 11,562,942,215.82/143,564.61
  6. Step 6: Final answer
    x = 80,541.73

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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.