Home / 106,543.22-147,023.91-66,255.84

Finding the Fourth Proportional to 106,543.22, 147,023.91 and 66,255.84

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Solution

The fourth proportional to 106,543.22, 147,023.91 and 66,255.84 is: 91,429.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,543.22 : 147,023.91 = 66,255.84 : x
  2. Step 2: Convert to fraction form
    106,543.22/147,023.91 = 66,255.84/x
  3. Step 3: Cross multiply
    106,543.22x = 147,023.91 × 66,255.84
  4. Step 4: Simplify right side
    106,543.22x = 9,741,192,657.13
  5. Step 5: Solve for x
    x = 9,741,192,657.13/106,543.22
  6. Step 6: Final answer
    x = 91,429.50

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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.