Home / 210,985.09-316,394.25-68,795.41

Finding the Fourth Proportional to 210,985.09, 316,394.25 and 68,795.41

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Solution

The fourth proportional to 210,985.09, 316,394.25 and 68,795.41 is: 103,165.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,985.09 : 316,394.25 = 68,795.41 : x
  2. Step 2: Convert to fraction form
    210,985.09/316,394.25 = 68,795.41/x
  3. Step 3: Cross multiply
    210,985.09x = 316,394.25 × 68,795.41
  4. Step 4: Simplify right side
    210,985.09x = 21,766,472,081.64
  5. Step 5: Solve for x
    x = 21,766,472,081.64/210,985.09
  6. Step 6: Final answer
    x = 103,165.93

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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.