Home / 171,890.10-257,871.60-51,937.20

Finding the Fourth Proportional to 171,890.10, 257,871.60 and 51,937.20

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Solution

The fourth proportional to 171,890.10, 257,871.60 and 51,937.20 is: 77,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,890.10 : 257,871.60 = 51,937.20 : x
  2. Step 2: Convert to fraction form
    171,890.10/257,871.60 = 51,937.20/x
  3. Step 3: Cross multiply
    171,890.10x = 257,871.60 × 51,937.20
  4. Step 4: Simplify right side
    171,890.10x = 13,393,128,863.52
  5. Step 5: Solve for x
    x = 13,393,128,863.52/171,890.10
  6. Step 6: Final answer
    x = 77,916.81

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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.