Home / 212,015.64-318,063.96-69,901.86

Finding the Fourth Proportional to 212,015.64, 318,063.96 and 69,901.86

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Solution

The fourth proportional to 212,015.64, 318,063.96 and 69,901.86 is: 104,866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,015.64 : 318,063.96 = 69,901.86 : x
  2. Step 2: Convert to fraction form
    212,015.64/318,063.96 = 69,901.86/x
  3. Step 3: Cross multiply
    212,015.64x = 318,063.96 × 69,901.86
  4. Step 4: Simplify right side
    212,015.64x = 22,233,262,402.97
  5. Step 5: Solve for x
    x = 22,233,262,402.97/212,015.64
  6. Step 6: Final answer
    x = 104,866.14

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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.