Home / 107,906.11-148,963.26-83,653.50

Finding the Fourth Proportional to 107,906.11, 148,963.26 and 83,653.50

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Solution

The fourth proportional to 107,906.11, 148,963.26 and 83,653.50 is: 115,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,906.11 : 148,963.26 = 83,653.50 : x
  2. Step 2: Convert to fraction form
    107,906.11/148,963.26 = 83,653.50/x
  3. Step 3: Cross multiply
    107,906.11x = 148,963.26 × 83,653.50
  4. Step 4: Simplify right side
    107,906.11x = 12,461,298,070.41
  5. Step 5: Solve for x
    x = 12,461,298,070.41/107,906.11
  6. Step 6: Final answer
    x = 115,482.78

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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.