Home / 211,285.40-316,861.16-69,097.82

Finding the Fourth Proportional to 211,285.40, 316,861.16 and 69,097.82

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Solution

The fourth proportional to 211,285.40, 316,861.16 and 69,097.82 is: 103,624.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,285.40 : 316,861.16 = 69,097.82 : x
  2. Step 2: Convert to fraction form
    211,285.40/316,861.16 = 69,097.82/x
  3. Step 3: Cross multiply
    211,285.40x = 316,861.16 × 69,097.82
  4. Step 4: Simplify right side
    211,285.40x = 21,894,415,398.67
  5. Step 5: Solve for x
    x = 21,894,415,398.67/211,285.40
  6. Step 6: Final answer
    x = 103,624.84

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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.