Home / 143,161.28-197,748.48-108,962

Finding the Fourth Proportional to 143,161.28, 197,748.48 and 108,962

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Solution

The fourth proportional to 143,161.28, 197,748.48 and 108,962 is: 150,509.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,161.28 : 197,748.48 = 108,962 : x
  2. Step 2: Convert to fraction form
    143,161.28/197,748.48 = 108,962/x
  3. Step 3: Cross multiply
    143,161.28x = 197,748.48 × 108,962
  4. Step 4: Simplify right side
    143,161.28x = 21,547,069,877.76
  5. Step 5: Solve for x
    x = 21,547,069,877.76/143,161.28
  6. Step 6: Final answer
    x = 150,509.06

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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.