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Finding the Fourth Proportional to 172,654.16, 259,219.74 and 119,220.74

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Solution

The fourth proportional to 172,654.16, 259,219.74 and 119,220.74 is: 178,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,654.16 : 259,219.74 = 119,220.74 : x
  2. Step 2: Convert to fraction form
    172,654.16/259,219.74 = 119,220.74/x
  3. Step 3: Cross multiply
    172,654.16x = 259,219.74 × 119,220.74
  4. Step 4: Simplify right side
    172,654.16x = 30,904,369,225.41
  5. Step 5: Solve for x
    x = 30,904,369,225.41/172,654.16
  6. Step 6: Final answer
    x = 178,995.80

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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.