Home / 144,071.90-198,817.43-79,541.66

Finding the Fourth Proportional to 144,071.90, 198,817.43 and 79,541.66

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Solution

The fourth proportional to 144,071.90, 198,817.43 and 79,541.66 is: 109,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,071.90 : 198,817.43 = 79,541.66 : x
  2. Step 2: Convert to fraction form
    144,071.90/198,817.43 = 79,541.66/x
  3. Step 3: Cross multiply
    144,071.90x = 198,817.43 × 79,541.66
  4. Step 4: Simplify right side
    144,071.90x = 15,814,268,419.13
  5. Step 5: Solve for x
    x = 15,814,268,419.13/144,071.90
  6. Step 6: Final answer
    x = 109,766.50

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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.