Home / 219,156.39-302,432.87-122,361.73

Finding the Fourth Proportional to 219,156.39, 302,432.87 and 122,361.73

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Solution

The fourth proportional to 219,156.39, 302,432.87 and 122,361.73 is: 168,857.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,156.39 : 302,432.87 = 122,361.73 : x
  2. Step 2: Convert to fraction form
    219,156.39/302,432.87 = 122,361.73/x
  3. Step 3: Cross multiply
    219,156.39x = 302,432.87 × 122,361.73
  4. Step 4: Simplify right side
    219,156.39x = 37,006,208,731.89
  5. Step 5: Solve for x
    x = 37,006,208,731.89/219,156.39
  6. Step 6: Final answer
    x = 168,857.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.