Home / 103,929.29-143,423.73-63,081.59

Finding the Fourth Proportional to 103,929.29, 143,423.73 and 63,081.59

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Solution

The fourth proportional to 103,929.29, 143,423.73 and 63,081.59 is: 87,053.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,929.29 : 143,423.73 = 63,081.59 : x
  2. Step 2: Convert to fraction form
    103,929.29/143,423.73 = 63,081.59/x
  3. Step 3: Cross multiply
    103,929.29x = 143,423.73 × 63,081.59
  4. Step 4: Simplify right side
    103,929.29x = 9,047,396,932.13
  5. Step 5: Solve for x
    x = 9,047,396,932.13/103,929.29
  6. Step 6: Final answer
    x = 87,053.39

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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.