Home / 120,865.93-166,785.19-69,881.93

Finding the Fourth Proportional to 120,865.93, 166,785.19 and 69,881.93

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Solution

The fourth proportional to 120,865.93, 166,785.19 and 69,881.93 is: 96,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,865.93 : 166,785.19 = 69,881.93 : x
  2. Step 2: Convert to fraction form
    120,865.93/166,785.19 = 69,881.93/x
  3. Step 3: Cross multiply
    120,865.93x = 166,785.19 × 69,881.93
  4. Step 4: Simplify right side
    120,865.93x = 11,655,270,623.21
  5. Step 5: Solve for x
    x = 11,655,270,623.21/120,865.93
  6. Step 6: Final answer
    x = 96,431.40

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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.