Home / 103,719.98-143,124.48-57,776.24

Finding the Fourth Proportional to 103,719.98, 143,124.48 and 57,776.24

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Solution

The fourth proportional to 103,719.98, 143,124.48 and 57,776.24 is: 79,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,719.98 : 143,124.48 = 57,776.24 : x
  2. Step 2: Convert to fraction form
    103,719.98/143,124.48 = 57,776.24/x
  3. Step 3: Cross multiply
    103,719.98x = 143,124.48 × 57,776.24
  4. Step 4: Simplify right side
    103,719.98x = 8,269,193,590.73
  5. Step 5: Solve for x
    x = 8,269,193,590.73/103,719.98
  6. Step 6: Final answer
    x = 79,726.14

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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.