Home / 103,965.47-155,925.23-29,065.48

Finding the Fourth Proportional to 103,965.47, 155,925.23 and 29,065.48

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Solution

The fourth proportional to 103,965.47, 155,925.23 and 29,065.48 is: 43,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,965.47 : 155,925.23 = 29,065.48 : x
  2. Step 2: Convert to fraction form
    103,965.47/155,925.23 = 29,065.48/x
  3. Step 3: Cross multiply
    103,965.47x = 155,925.23 × 29,065.48
  4. Step 4: Simplify right side
    103,965.47x = 4,532,042,077.75
  5. Step 5: Solve for x
    x = 4,532,042,077.75/103,965.47
  6. Step 6: Final answer
    x = 43,591.80

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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.