Home / 119,890.22-165,452.50-65,445.62

Finding the Fourth Proportional to 119,890.22, 165,452.50 and 65,445.62

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Solution

The fourth proportional to 119,890.22, 165,452.50 and 65,445.62 is: 90,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,890.22 : 165,452.50 = 65,445.62 : x
  2. Step 2: Convert to fraction form
    119,890.22/165,452.50 = 65,445.62/x
  3. Step 3: Cross multiply
    119,890.22x = 165,452.50 × 65,445.62
  4. Step 4: Simplify right side
    119,890.22x = 10,828,140,615.79
  5. Step 5: Solve for x
    x = 10,828,140,615.79/119,890.22
  6. Step 6: Final answer
    x = 90,317.13

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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.