Home / 109,056.30-163,584.45-67,065.90

Finding the Fourth Proportional to 109,056.30, 163,584.45 and 67,065.90

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Solution

The fourth proportional to 109,056.30, 163,584.45 and 67,065.90 is: 100,598.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,056.30 : 163,584.45 = 67,065.90 : x
  2. Step 2: Convert to fraction form
    109,056.30/163,584.45 = 67,065.90/x
  3. Step 3: Cross multiply
    109,056.30x = 163,584.45 × 67,065.90
  4. Step 4: Simplify right side
    109,056.30x = 10,970,938,365.26
  5. Step 5: Solve for x
    x = 10,970,938,365.26/109,056.30
  6. Step 6: Final answer
    x = 100,598.85

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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.