Home / 103,546.93-155,117.41-53,659.75

Finding the Fourth Proportional to 103,546.93, 155,117.41 and 53,659.75

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Solution

The fourth proportional to 103,546.93, 155,117.41 and 53,659.75 is: 80,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,546.93 : 155,117.41 = 53,659.75 : x
  2. Step 2: Convert to fraction form
    103,546.93/155,117.41 = 53,659.75/x
  3. Step 3: Cross multiply
    103,546.93x = 155,117.41 × 53,659.75
  4. Step 4: Simplify right side
    103,546.93x = 8,323,561,307.10
  5. Step 5: Solve for x
    x = 8,323,561,307.10/103,546.93
  6. Step 6: Final answer
    x = 80,384.43

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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.