Home / 170,147.10-255,220.65-76,835.10

Finding the Fourth Proportional to 170,147.10, 255,220.65 and 76,835.10

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Solution

The fourth proportional to 170,147.10, 255,220.65 and 76,835.10 is: 115,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,147.10 : 255,220.65 = 76,835.10 : x
  2. Step 2: Convert to fraction form
    170,147.10/255,220.65 = 76,835.10/x
  3. Step 3: Cross multiply
    170,147.10x = 255,220.65 × 76,835.10
  4. Step 4: Simplify right side
    170,147.10x = 19,609,904,164.82
  5. Step 5: Solve for x
    x = 19,609,904,164.82/170,147.10
  6. Step 6: Final answer
    x = 115,252.65

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1.5x scale

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.