Home / 171,520.34-257,280.50-78,052.82

Finding the Fourth Proportional to 171,520.34, 257,280.50 and 78,052.82

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Solution

The fourth proportional to 171,520.34, 257,280.50 and 78,052.82 is: 117,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,520.34 : 257,280.50 = 78,052.82 : x
  2. Step 2: Convert to fraction form
    171,520.34/257,280.50 = 78,052.82/x
  3. Step 3: Cross multiply
    171,520.34x = 257,280.50 × 78,052.82
  4. Step 4: Simplify right side
    171,520.34x = 20,081,467,464.74
  5. Step 5: Solve for x
    x = 20,081,467,464.74/171,520.34
  6. Step 6: Final answer
    x = 117,079.22

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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.