Home / 210,913.27-316,402.88-68,725.53

Finding the Fourth Proportional to 210,913.27, 316,402.88 and 68,725.53

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Solution

The fourth proportional to 210,913.27, 316,402.88 and 68,725.53 is: 103,099.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,913.27 : 316,402.88 = 68,725.53 : x
  2. Step 2: Convert to fraction form
    210,913.27/316,402.88 = 68,725.53/x
  3. Step 3: Cross multiply
    210,913.27x = 316,402.88 × 68,725.53
  4. Step 4: Simplify right side
    210,913.27x = 21,744,955,277.90
  5. Step 5: Solve for x
    x = 21,744,955,277.90/210,913.27
  6. Step 6: Final answer
    x = 103,099.04

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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.