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Finding the Fourth Proportional to 172,037.70, 258,056.55 and 140,544.90

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Solution

The fourth proportional to 172,037.70, 258,056.55 and 140,544.90 is: 210,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,037.70 : 258,056.55 = 140,544.90 : x
  2. Step 2: Convert to fraction form
    172,037.70/258,056.55 = 140,544.90/x
  3. Step 3: Cross multiply
    172,037.70x = 258,056.55 × 140,544.90
  4. Step 4: Simplify right side
    172,037.70x = 36,268,532,014.10
  5. Step 5: Solve for x
    x = 36,268,532,014.10/172,037.70
  6. Step 6: Final answer
    x = 210,817.35

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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.