Home / 170,680.76-255,941.90-99,623.91

Finding the Fourth Proportional to 170,680.76, 255,941.90 and 99,623.91

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Solution

The fourth proportional to 170,680.76, 255,941.90 and 99,623.91 is: 149,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,680.76 : 255,941.90 = 99,623.91 : x
  2. Step 2: Convert to fraction form
    170,680.76/255,941.90 = 99,623.91/x
  3. Step 3: Cross multiply
    170,680.76x = 255,941.90 × 99,623.91
  4. Step 4: Simplify right side
    170,680.76x = 25,497,932,810.83
  5. Step 5: Solve for x
    x = 25,497,932,810.83/170,680.76
  6. Step 6: Final answer
    x = 149,389.61

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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.