Home / 119,782.29-165,278.91-76,799.37

Finding the Fourth Proportional to 119,782.29, 165,278.91 and 76,799.37

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Solution

The fourth proportional to 119,782.29, 165,278.91 and 76,799.37 is: 105,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,782.29 : 165,278.91 = 76,799.37 : x
  2. Step 2: Convert to fraction form
    119,782.29/165,278.91 = 76,799.37/x
  3. Step 3: Cross multiply
    119,782.29x = 165,278.91 × 76,799.37
  4. Step 4: Simplify right side
    119,782.29x = 12,693,316,162.29
  5. Step 5: Solve for x
    x = 12,693,316,162.29/119,782.29
  6. Step 6: Final answer
    x = 105,969.89

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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.