Home / 123,115.24-169,898.96-66,526.60

Finding the Fourth Proportional to 123,115.24, 169,898.96 and 66,526.60

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Solution

The fourth proportional to 123,115.24, 169,898.96 and 66,526.60 is: 91,806.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,115.24 : 169,898.96 = 66,526.60 : x
  2. Step 2: Convert to fraction form
    123,115.24/169,898.96 = 66,526.60/x
  3. Step 3: Cross multiply
    123,115.24x = 169,898.96 × 66,526.60
  4. Step 4: Simplify right side
    123,115.24x = 11,302,800,152.34
  5. Step 5: Solve for x
    x = 11,302,800,152.34/123,115.24
  6. Step 6: Final answer
    x = 91,806.67

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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.