Home / 120,316.12-166,040.15-69,324.89

Finding the Fourth Proportional to 120,316.12, 166,040.15 and 69,324.89

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Solution

The fourth proportional to 120,316.12, 166,040.15 and 69,324.89 is: 95,670.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,316.12 : 166,040.15 = 69,324.89 : x
  2. Step 2: Convert to fraction form
    120,316.12/166,040.15 = 69,324.89/x
  3. Step 3: Cross multiply
    120,316.12x = 166,040.15 × 69,324.89
  4. Step 4: Simplify right side
    120,316.12x = 11,510,713,957.51
  5. Step 5: Solve for x
    x = 11,510,713,957.51/120,316.12
  6. Step 6: Final answer
    x = 95,670.59

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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.