Home / 144,688.77-199,665.86-80,155.35

Finding the Fourth Proportional to 144,688.77, 199,665.86 and 80,155.35

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Solution

The fourth proportional to 144,688.77, 199,665.86 and 80,155.35 is: 110,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,688.77 : 199,665.86 = 80,155.35 : x
  2. Step 2: Convert to fraction form
    144,688.77/199,665.86 = 80,155.35/x
  3. Step 3: Cross multiply
    144,688.77x = 199,665.86 × 80,155.35
  4. Step 4: Simplify right side
    144,688.77x = 16,004,286,490.57
  5. Step 5: Solve for x
    x = 16,004,286,490.57/144,688.77
  6. Step 6: Final answer
    x = 110,611.81

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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.