Home / 157,890.30-236,851.39-51,269.80

Finding the Fourth Proportional to 157,890.30, 236,851.39 and 51,269.80

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Solution

The fourth proportional to 157,890.30, 236,851.39 and 51,269.80 is: 76,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,890.30 : 236,851.39 = 51,269.80 : x
  2. Step 2: Convert to fraction form
    157,890.30/236,851.39 = 51,269.80/x
  3. Step 3: Cross multiply
    157,890.30x = 236,851.39 × 51,269.80
  4. Step 4: Simplify right side
    157,890.30x = 12,143,322,674.72
  5. Step 5: Solve for x
    x = 12,143,322,674.72/157,890.30
  6. Step 6: Final answer
    x = 76,909.87

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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.