Home / 112,308.78-154,984.94-61,321.35

Finding the Fourth Proportional to 112,308.78, 154,984.94 and 61,321.35

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Solution

The fourth proportional to 112,308.78, 154,984.94 and 61,321.35 is: 84,622.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,308.78 : 154,984.94 = 61,321.35 : x
  2. Step 2: Convert to fraction form
    112,308.78/154,984.94 = 61,321.35/x
  3. Step 3: Cross multiply
    112,308.78x = 154,984.94 × 61,321.35
  4. Step 4: Simplify right side
    112,308.78x = 9,503,885,984.63
  5. Step 5: Solve for x
    x = 9,503,885,984.63/112,308.78
  6. Step 6: Final answer
    x = 84,622.82

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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.