Home / 104,137.29-143,709.26-56,390.49

Finding the Fourth Proportional to 104,137.29, 143,709.26 and 56,390.49

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Solution

The fourth proportional to 104,137.29, 143,709.26 and 56,390.49 is: 77,818.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,137.29 : 143,709.26 = 56,390.49 : x
  2. Step 2: Convert to fraction form
    104,137.29/143,709.26 = 56,390.49/x
  3. Step 3: Cross multiply
    104,137.29x = 143,709.26 × 56,390.49
  4. Step 4: Simplify right side
    104,137.29x = 8,103,835,306.98
  5. Step 5: Solve for x
    x = 8,103,835,306.98/104,137.29
  6. Step 6: Final answer
    x = 77,818.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.