Home / 211,018.86-316,575.69-70,773.90

Finding the Fourth Proportional to 211,018.86, 316,575.69 and 70,773.90

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Solution

The fourth proportional to 211,018.86, 316,575.69 and 70,773.90 is: 106,176.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,018.86 : 316,575.69 = 70,773.90 : x
  2. Step 2: Convert to fraction form
    211,018.86/316,575.69 = 70,773.90/x
  3. Step 3: Cross multiply
    211,018.86x = 316,575.69 × 70,773.90
  4. Step 4: Simplify right side
    211,018.86x = 22,405,296,226.49
  5. Step 5: Solve for x
    x = 22,405,296,226.49/211,018.86
  6. Step 6: Final answer
    x = 106,176.75

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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.