Home / 102,540.30-153,532.52-53,188.62

Finding the Fourth Proportional to 102,540.30, 153,532.52 and 53,188.62

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Solution

The fourth proportional to 102,540.30, 153,532.52 and 53,188.62 is: 79,638.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,540.30 : 153,532.52 = 53,188.62 : x
  2. Step 2: Convert to fraction form
    102,540.30/153,532.52 = 53,188.62/x
  3. Step 3: Cross multiply
    102,540.30x = 153,532.52 × 53,188.62
  4. Step 4: Simplify right side
    102,540.30x = 8,166,182,863.92
  5. Step 5: Solve for x
    x = 8,166,182,863.92/102,540.30
  6. Step 6: Final answer
    x = 79,638.77

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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.