Home / 143,256.20-197,632.32-89,504.60

Finding the Fourth Proportional to 143,256.20, 197,632.32 and 89,504.60

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Solution

The fourth proportional to 143,256.20, 197,632.32 and 89,504.60 is: 123,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,256.20 : 197,632.32 = 89,504.60 : x
  2. Step 2: Convert to fraction form
    143,256.20/197,632.32 = 89,504.60/x
  3. Step 3: Cross multiply
    143,256.20x = 197,632.32 × 89,504.60
  4. Step 4: Simplify right side
    143,256.20x = 17,689,001,748.67
  5. Step 5: Solve for x
    x = 17,689,001,748.67/143,256.20
  6. Step 6: Final answer
    x = 123,478.09

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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.