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Finding the Fourth Proportional to 170,143.80, 255,215.70 and 116,999.70

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Solution

The fourth proportional to 170,143.80, 255,215.70 and 116,999.70 is: 175,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,143.80 : 255,215.70 = 116,999.70 : x
  2. Step 2: Convert to fraction form
    170,143.80/255,215.70 = 116,999.70/x
  3. Step 3: Cross multiply
    170,143.80x = 255,215.70 × 116,999.70
  4. Step 4: Simplify right side
    170,143.80x = 29,860,160,335.29
  5. Step 5: Solve for x
    x = 29,860,160,335.29/170,143.80
  6. Step 6: Final answer
    x = 175,499.55

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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.