Home / 110,022.90-151,821.10-87,416.61

Finding the Fourth Proportional to 110,022.90, 151,821.10 and 87,416.61

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Solution

The fourth proportional to 110,022.90, 151,821.10 and 87,416.61 is: 120,626.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,022.90 : 151,821.10 = 87,416.61 : x
  2. Step 2: Convert to fraction form
    110,022.90/151,821.10 = 87,416.61/x
  3. Step 3: Cross multiply
    110,022.90x = 151,821.10 × 87,416.61
  4. Step 4: Simplify right side
    110,022.90x = 13,271,685,888.47
  5. Step 5: Solve for x
    x = 13,271,685,888.47/110,022.90
  6. Step 6: Final answer
    x = 120,626.58

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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.