Home / 144,688.70-199,665.78-80,155.28

Finding the Fourth Proportional to 144,688.70, 199,665.78 and 80,155.28

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Solution

The fourth proportional to 144,688.70, 199,665.78 and 80,155.28 is: 110,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,688.70 : 199,665.78 = 80,155.28 : x
  2. Step 2: Convert to fraction form
    144,688.70/199,665.78 = 80,155.28/x
  3. Step 3: Cross multiply
    144,688.70x = 199,665.78 × 80,155.28
  4. Step 4: Simplify right side
    144,688.70x = 16,004,266,502.32
  5. Step 5: Solve for x
    x = 16,004,266,502.32/144,688.70
  6. Step 6: Final answer
    x = 110,611.72

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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.