Home / 455,313.12-683,071.20-139,801.92

Finding the Fourth Proportional to 455,313.12, 683,071.20 and 139,801.92

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Solution

The fourth proportional to 455,313.12, 683,071.20 and 139,801.92 is: 209,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,313.12 : 683,071.20 = 139,801.92 : x
  2. Step 2: Convert to fraction form
    455,313.12/683,071.20 = 139,801.92/x
  3. Step 3: Cross multiply
    455,313.12x = 683,071.20 × 139,801.92
  4. Step 4: Simplify right side
    455,313.12x = 95,494,665,256.70
  5. Step 5: Solve for x
    x = 95,494,665,256.70/455,313.12
  6. Step 6: Final answer
    x = 209,734.05

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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.