Home / 210,918.27-316,402.06-74,099.38

Finding the Fourth Proportional to 210,918.27, 316,402.06 and 74,099.38

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Solution

The fourth proportional to 210,918.27, 316,402.06 and 74,099.38 is: 111,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,918.27 : 316,402.06 = 74,099.38 : x
  2. Step 2: Convert to fraction form
    210,918.27/316,402.06 = 74,099.38/x
  3. Step 3: Cross multiply
    210,918.27x = 316,402.06 × 74,099.38
  4. Step 4: Simplify right side
    210,918.27x = 23,445,194,894.71
  5. Step 5: Solve for x
    x = 23,445,194,894.71/210,918.27
  6. Step 6: Final answer
    x = 111,157.72

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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.