Home / 119,578.18-165,018.90-65,865.04

Finding the Fourth Proportional to 119,578.18, 165,018.90 and 65,865.04

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Solution

The fourth proportional to 119,578.18, 165,018.90 and 65,865.04 is: 90,894.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,578.18 : 165,018.90 = 65,865.04 : x
  2. Step 2: Convert to fraction form
    119,578.18/165,018.90 = 65,865.04/x
  3. Step 3: Cross multiply
    119,578.18x = 165,018.90 × 65,865.04
  4. Step 4: Simplify right side
    119,578.18x = 10,868,976,449.26
  5. Step 5: Solve for x
    x = 10,868,976,449.26/119,578.18
  6. Step 6: Final answer
    x = 90,894.31

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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.