Home / 107,865.47-161,787.27-28,969.45

Finding the Fourth Proportional to 107,865.47, 161,787.27 and 28,969.45

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Solution

The fourth proportional to 107,865.47, 161,787.27 and 28,969.45 is: 43,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,865.47 : 161,787.27 = 28,969.45 : x
  2. Step 2: Convert to fraction form
    107,865.47/161,787.27 = 28,969.45/x
  3. Step 3: Cross multiply
    107,865.47x = 161,787.27 × 28,969.45
  4. Step 4: Simplify right side
    107,865.47x = 4,686,888,228.90
  5. Step 5: Solve for x
    x = 4,686,888,228.90/107,865.47
  6. Step 6: Final answer
    x = 43,451.24

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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.