Home / 170,728.92-256,070.86-52,390.35

Finding the Fourth Proportional to 170,728.92, 256,070.86 and 52,390.35

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Solution

The fourth proportional to 170,728.92, 256,070.86 and 52,390.35 is: 78,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,728.92 : 256,070.86 = 52,390.35 : x
  2. Step 2: Convert to fraction form
    170,728.92/256,070.86 = 52,390.35/x
  3. Step 3: Cross multiply
    170,728.92x = 256,070.86 × 52,390.35
  4. Step 4: Simplify right side
    170,728.92x = 13,415,641,849.23
  5. Step 5: Solve for x
    x = 13,415,641,849.23/170,728.92
  6. Step 6: Final answer
    x = 78,578.61

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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.