Home / 143,077.56-197,411.44-79,399.40

Finding the Fourth Proportional to 143,077.56, 197,411.44 and 79,399.40

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Solution

The fourth proportional to 143,077.56, 197,411.44 and 79,399.40 is: 109,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,077.56 : 197,411.44 = 79,399.40 : x
  2. Step 2: Convert to fraction form
    143,077.56/197,411.44 = 79,399.40/x
  3. Step 3: Cross multiply
    143,077.56x = 197,411.44 × 79,399.40
  4. Step 4: Simplify right side
    143,077.56x = 15,674,349,889.14
  5. Step 5: Solve for x
    x = 15,674,349,889.14/143,077.56
  6. Step 6: Final answer
    x = 109,551.42

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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.