Home / 112,581.69-168,892.98-53,416.80

Finding the Fourth Proportional to 112,581.69, 168,892.98 and 53,416.80

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Solution

The fourth proportional to 112,581.69, 168,892.98 and 53,416.80 is: 80,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,581.69 : 168,892.98 = 53,416.80 : x
  2. Step 2: Convert to fraction form
    112,581.69/168,892.98 = 53,416.80/x
  3. Step 3: Cross multiply
    112,581.69x = 168,892.98 × 53,416.80
  4. Step 4: Simplify right side
    112,581.69x = 9,021,722,534.06
  5. Step 5: Solve for x
    x = 9,021,722,534.06/112,581.69
  6. Step 6: Final answer
    x = 80,134.90

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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.