Home / 143,298.12-197,749.98-79,634.64

Finding the Fourth Proportional to 143,298.12, 197,749.98 and 79,634.64

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Solution

The fourth proportional to 143,298.12, 197,749.98 and 79,634.64 is: 109,895.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,298.12 : 197,749.98 = 79,634.64 : x
  2. Step 2: Convert to fraction form
    143,298.12/197,749.98 = 79,634.64/x
  3. Step 3: Cross multiply
    143,298.12x = 197,749.98 × 79,634.64
  4. Step 4: Simplify right side
    143,298.12x = 15,747,748,467.31
  5. Step 5: Solve for x
    x = 15,747,748,467.31/143,298.12
  6. Step 6: Final answer
    x = 109,895.01

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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.