Home / 119,636.80-165,099.28-65,919.24

Finding the Fourth Proportional to 119,636.80, 165,099.28 and 65,919.24

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Solution

The fourth proportional to 119,636.80, 165,099.28 and 65,919.24 is: 90,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,636.80 : 165,099.28 = 65,919.24 : x
  2. Step 2: Convert to fraction form
    119,636.80/165,099.28 = 65,919.24/x
  3. Step 3: Cross multiply
    119,636.80x = 165,099.28 × 65,919.24
  4. Step 4: Simplify right side
    119,636.80x = 10,883,219,062.15
  5. Step 5: Solve for x
    x = 10,883,219,062.15/119,636.80
  6. Step 6: Final answer
    x = 90,968.82

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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.