Home / 144,737.06-199,734.81-81,074.66

Finding the Fourth Proportional to 144,737.06, 199,734.81 and 81,074.66

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Solution

The fourth proportional to 144,737.06, 199,734.81 and 81,074.66 is: 111,881.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,737.06 : 199,734.81 = 81,074.66 : x
  2. Step 2: Convert to fraction form
    144,737.06/199,734.81 = 81,074.66/x
  3. Step 3: Cross multiply
    144,737.06x = 199,734.81 × 81,074.66
  4. Step 4: Simplify right side
    144,737.06x = 16,193,431,810.91
  5. Step 5: Solve for x
    x = 16,193,431,810.91/144,737.06
  6. Step 6: Final answer
    x = 111,881.72

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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.