Home / 105,865.61-146,093.90-57,468.51

Finding the Fourth Proportional to 105,865.61, 146,093.90 and 57,468.51

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Solution

The fourth proportional to 105,865.61, 146,093.90 and 57,468.51 is: 79,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,865.61 : 146,093.90 = 57,468.51 : x
  2. Step 2: Convert to fraction form
    105,865.61/146,093.90 = 57,468.51/x
  3. Step 3: Cross multiply
    105,865.61x = 146,093.90 × 57,468.51
  4. Step 4: Simplify right side
    105,865.61x = 8,395,798,465.75
  5. Step 5: Solve for x
    x = 8,395,798,465.75/105,865.61
  6. Step 6: Final answer
    x = 79,306.20

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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.