Home / 211,204.42-316,780.20-69,037.80

Finding the Fourth Proportional to 211,204.42, 316,780.20 and 69,037.80

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Solution

The fourth proportional to 211,204.42, 316,780.20 and 69,037.80 is: 103,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,204.42 : 316,780.20 = 69,037.80 : x
  2. Step 2: Convert to fraction form
    211,204.42/316,780.20 = 69,037.80/x
  3. Step 3: Cross multiply
    211,204.42x = 316,780.20 × 69,037.80
  4. Step 4: Simplify right side
    211,204.42x = 21,869,806,507.66
  5. Step 5: Solve for x
    x = 21,869,806,507.66/211,204.42
  6. Step 6: Final answer
    x = 103,548.05

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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.