Home / 110,613.20-165,973.80-51,418.40

Finding the Fourth Proportional to 110,613.20, 165,973.80 and 51,418.40

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Solution

The fourth proportional to 110,613.20, 165,973.80 and 51,418.40 is: 77,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,613.20 : 165,973.80 = 51,418.40 : x
  2. Step 2: Convert to fraction form
    110,613.20/165,973.80 = 51,418.40/x
  3. Step 3: Cross multiply
    110,613.20x = 165,973.80 × 51,418.40
  4. Step 4: Simplify right side
    110,613.20x = 8,534,107,237.92
  5. Step 5: Solve for x
    x = 8,534,107,237.92/110,613.20
  6. Step 6: Final answer
    x = 77,152.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.