Home / 171,474.32-257,117.52-53,112.80

Finding the Fourth Proportional to 171,474.32, 257,117.52 and 53,112.80

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Solution

The fourth proportional to 171,474.32, 257,117.52 and 53,112.80 is: 79,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,474.32 : 257,117.52 = 53,112.80 : x
  2. Step 2: Convert to fraction form
    171,474.32/257,117.52 = 53,112.80/x
  3. Step 3: Cross multiply
    171,474.32x = 257,117.52 × 53,112.80
  4. Step 4: Simplify right side
    171,474.32x = 13,656,231,416.26
  5. Step 5: Solve for x
    x = 13,656,231,416.26/171,474.32
  6. Step 6: Final answer
    x = 79,640.10

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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.