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Finding the Fourth Proportional to 172,148.58, 258,202.32 and 45,798.10

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Solution

The fourth proportional to 172,148.58, 258,202.32 and 45,798.10 is: 68,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,148.58 : 258,202.32 = 45,798.10 : x
  2. Step 2: Convert to fraction form
    172,148.58/258,202.32 = 45,798.10/x
  3. Step 3: Cross multiply
    172,148.58x = 258,202.32 × 45,798.10
  4. Step 4: Simplify right side
    172,148.58x = 11,825,175,671.59
  5. Step 5: Solve for x
    x = 11,825,175,671.59/172,148.58
  6. Step 6: Final answer
    x = 68,691.68

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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.