Home / 107,935.60-161,903.40-68,569.60

Finding the Fourth Proportional to 107,935.60, 161,903.40 and 68,569.60

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Solution

The fourth proportional to 107,935.60, 161,903.40 and 68,569.60 is: 102,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,935.60 : 161,903.40 = 68,569.60 : x
  2. Step 2: Convert to fraction form
    107,935.60/161,903.40 = 68,569.60/x
  3. Step 3: Cross multiply
    107,935.60x = 161,903.40 × 68,569.60
  4. Step 4: Simplify right side
    107,935.60x = 11,101,651,376.64
  5. Step 5: Solve for x
    x = 11,101,651,376.64/107,935.60
  6. Step 6: Final answer
    x = 102,854.40

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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.