Home / 107,821.64-161,726.70-28,934.60

Finding the Fourth Proportional to 107,821.64, 161,726.70 and 28,934.60

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Solution

The fourth proportional to 107,821.64, 161,726.70 and 28,934.60 is: 43,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,821.64 : 161,726.70 = 28,934.60 : x
  2. Step 2: Convert to fraction form
    107,821.64/161,726.70 = 28,934.60/x
  3. Step 3: Cross multiply
    107,821.64x = 161,726.70 × 28,934.60
  4. Step 4: Simplify right side
    107,821.64x = 4,679,497,373.82
  5. Step 5: Solve for x
    x = 4,679,497,373.82/107,821.64
  6. Step 6: Final answer
    x = 43,400.35

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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.