Home / 156,939.40-235,322.70-51,704.20

Finding the Fourth Proportional to 156,939.40, 235,322.70 and 51,704.20

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Solution

The fourth proportional to 156,939.40, 235,322.70 and 51,704.20 is: 77,527.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,939.40 : 235,322.70 = 51,704.20 : x
  2. Step 2: Convert to fraction form
    156,939.40/235,322.70 = 51,704.20/x
  3. Step 3: Cross multiply
    156,939.40x = 235,322.70 × 51,704.20
  4. Step 4: Simplify right side
    156,939.40x = 12,167,171,945.34
  5. Step 5: Solve for x
    x = 12,167,171,945.34/156,939.40
  6. Step 6: Final answer
    x = 77,527.84

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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.