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Finding the Fourth Proportional to 103,532.58, 142,898.58 and 73,286.37

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Solution

The fourth proportional to 103,532.58, 142,898.58 and 73,286.37 is: 101,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,532.58 : 142,898.58 = 73,286.37 : x
  2. Step 2: Convert to fraction form
    103,532.58/142,898.58 = 73,286.37/x
  3. Step 3: Cross multiply
    103,532.58x = 142,898.58 × 73,286.37
  4. Step 4: Simplify right side
    103,532.58x = 10,472,518,206.35
  5. Step 5: Solve for x
    x = 10,472,518,206.35/103,532.58
  6. Step 6: Final answer
    x = 101,151.91

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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.