Home / 112,308.96-154,985.19-61,321.54

Finding the Fourth Proportional to 112,308.96, 154,985.19 and 61,321.54

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Solution

The fourth proportional to 112,308.96, 154,985.19 and 61,321.54 is: 84,623.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,308.96 : 154,985.19 = 61,321.54 : x
  2. Step 2: Convert to fraction form
    112,308.96/154,985.19 = 61,321.54/x
  3. Step 3: Cross multiply
    112,308.96x = 154,985.19 × 61,321.54
  4. Step 4: Simplify right side
    112,308.96x = 9,503,930,527.99
  5. Step 5: Solve for x
    x = 9,503,930,527.99/112,308.96
  6. Step 6: Final answer
    x = 84,623.08

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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.