Home / 139,154.46-208,560.61-64,170.51

Finding the Fourth Proportional to 139,154.46, 208,560.61 and 64,170.51

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Solution

The fourth proportional to 139,154.46, 208,560.61 and 64,170.51 is: 96,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,154.46 : 208,560.61 = 64,170.51 : x
  2. Step 2: Convert to fraction form
    139,154.46/208,560.61 = 64,170.51/x
  3. Step 3: Cross multiply
    139,154.46x = 208,560.61 × 64,170.51
  4. Step 4: Simplify right side
    139,154.46x = 13,383,440,709.61
  5. Step 5: Solve for x
    x = 13,383,440,709.61/139,154.46
  6. Step 6: Final answer
    x = 96,176.87

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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.