Home / 170,975.40-256,438.80-52,658.70

Finding the Fourth Proportional to 170,975.40, 256,438.80 and 52,658.70

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Solution

The fourth proportional to 170,975.40, 256,438.80 and 52,658.70 is: 78,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,975.40 : 256,438.80 = 52,658.70 : x
  2. Step 2: Convert to fraction form
    170,975.40/256,438.80 = 52,658.70/x
  3. Step 3: Cross multiply
    170,975.40x = 256,438.80 × 52,658.70
  4. Step 4: Simplify right side
    170,975.40x = 13,503,733,837.56
  5. Step 5: Solve for x
    x = 13,503,733,837.56/170,975.40
  6. Step 6: Final answer
    x = 78,980.57

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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.