Home / 89,120.85-133,682.04-71,307.37

Finding the Fourth Proportional to 89,120.85, 133,682.04 and 71,307.37

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Solution

The fourth proportional to 89,120.85, 133,682.04 and 71,307.37 is: 106,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,120.85 : 133,682.04 = 71,307.37 : x
  2. Step 2: Convert to fraction form
    89,120.85/133,682.04 = 71,307.37/x
  3. Step 3: Cross multiply
    89,120.85x = 133,682.04 × 71,307.37
  4. Step 4: Simplify right side
    89,120.85x = 9,532,513,663.69
  5. Step 5: Solve for x
    x = 9,532,513,663.69/89,120.85
  6. Step 6: Final answer
    x = 106,961.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.