Home / 211,096.71-316,643.01-91,238.43

Finding the Fourth Proportional to 211,096.71, 316,643.01 and 91,238.43

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Solution

The fourth proportional to 211,096.71, 316,643.01 and 91,238.43 is: 136,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,096.71 : 316,643.01 = 91,238.43 : x
  2. Step 2: Convert to fraction form
    211,096.71/316,643.01 = 91,238.43/x
  3. Step 3: Cross multiply
    211,096.71x = 316,643.01 × 91,238.43
  4. Step 4: Simplify right side
    211,096.71x = 28,890,011,102.87
  5. Step 5: Solve for x
    x = 28,890,011,102.87/211,096.71
  6. Step 6: Final answer
    x = 136,856.76

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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.