Home / 210,836.18-316,167.26-80,985.36

Finding the Fourth Proportional to 210,836.18, 316,167.26 and 80,985.36

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Solution

The fourth proportional to 210,836.18, 316,167.26 and 80,985.36 is: 121,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,836.18 : 316,167.26 = 80,985.36 : x
  2. Step 2: Convert to fraction form
    210,836.18/316,167.26 = 80,985.36/x
  3. Step 3: Cross multiply
    210,836.18x = 316,167.26 × 80,985.36
  4. Step 4: Simplify right side
    210,836.18x = 25,604,919,573.78
  5. Step 5: Solve for x
    x = 25,604,919,573.78/210,836.18
  6. Step 6: Final answer
    x = 121,444.62

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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.