Home / 103,645.73-143,031.72-58,324.47

Finding the Fourth Proportional to 103,645.73, 143,031.72 and 58,324.47

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Solution

The fourth proportional to 103,645.73, 143,031.72 and 58,324.47 is: 80,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,645.73 : 143,031.72 = 58,324.47 : x
  2. Step 2: Convert to fraction form
    103,645.73/143,031.72 = 58,324.47/x
  3. Step 3: Cross multiply
    103,645.73x = 143,031.72 × 58,324.47
  4. Step 4: Simplify right side
    103,645.73x = 8,342,249,262.19
  5. Step 5: Solve for x
    x = 8,342,249,262.19/103,645.73
  6. Step 6: Final answer
    x = 80,488.11

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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.