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Finding the Fourth Proportional to 134,668.74, 185,834.50 and 74,239.90

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Solution

The fourth proportional to 134,668.74, 185,834.50 and 74,239.90 is: 102,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,668.74 : 185,834.50 = 74,239.90 : x
  2. Step 2: Convert to fraction form
    134,668.74/185,834.50 = 74,239.90/x
  3. Step 3: Cross multiply
    134,668.74x = 185,834.50 × 74,239.90
  4. Step 4: Simplify right side
    134,668.74x = 13,796,334,696.55
  5. Step 5: Solve for x
    x = 13,796,334,696.55/134,668.74
  6. Step 6: Final answer
    x = 102,446.45

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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.