Home / 210,738.11-316,107.16-77,569.25

Finding the Fourth Proportional to 210,738.11, 316,107.16 and 77,569.25

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Solution

The fourth proportional to 210,738.11, 316,107.16 and 77,569.25 is: 116,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,738.11 : 316,107.16 = 77,569.25 : x
  2. Step 2: Convert to fraction form
    210,738.11/316,107.16 = 77,569.25/x
  3. Step 3: Cross multiply
    210,738.11x = 316,107.16 × 77,569.25
  4. Step 4: Simplify right side
    210,738.11x = 24,520,193,546.37
  5. Step 5: Solve for x
    x = 24,520,193,546.37/210,738.11
  6. Step 6: Final answer
    x = 116,353.87

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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.