Home / 211,032.20-316,400.64-105,793.76

Finding the Fourth Proportional to 211,032.20, 316,400.64 and 105,793.76

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Solution

The fourth proportional to 211,032.20, 316,400.64 and 105,793.76 is: 158,616.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,032.20 : 316,400.64 = 105,793.76 : x
  2. Step 2: Convert to fraction form
    211,032.20/316,400.64 = 105,793.76/x
  3. Step 3: Cross multiply
    211,032.20x = 316,400.64 × 105,793.76
  4. Step 4: Simplify right side
    211,032.20x = 33,473,213,372.01
  5. Step 5: Solve for x
    x = 33,473,213,372.01/211,032.20
  6. Step 6: Final answer
    x = 158,616.62

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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.