Home / 143,157.48-197,557.68-79,495.28

Finding the Fourth Proportional to 143,157.48, 197,557.68 and 79,495.28

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Solution

The fourth proportional to 143,157.48, 197,557.68 and 79,495.28 is: 109,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,157.48 : 197,557.68 = 79,495.28 : x
  2. Step 2: Convert to fraction form
    143,157.48/197,557.68 = 79,495.28/x
  3. Step 3: Cross multiply
    143,157.48x = 197,557.68 × 79,495.28
  4. Step 4: Simplify right side
    143,157.48x = 15,704,903,087.75
  5. Step 5: Solve for x
    x = 15,704,903,087.75/143,157.48
  6. Step 6: Final answer
    x = 109,703.68

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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.