Home / 140,869.32-211,310.46-57,705

Finding the Fourth Proportional to 140,869.32, 211,310.46 and 57,705

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Solution

The fourth proportional to 140,869.32, 211,310.46 and 57,705 is: 86,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,869.32 : 211,310.46 = 57,705 : x
  2. Step 2: Convert to fraction form
    140,869.32/211,310.46 = 57,705/x
  3. Step 3: Cross multiply
    140,869.32x = 211,310.46 × 57,705
  4. Step 4: Simplify right side
    140,869.32x = 12,193,670,094.30
  5. Step 5: Solve for x
    x = 12,193,670,094.30/140,869.32
  6. Step 6: Final answer
    x = 86,560.15

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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.