Home / 121,212.72-181,618.60-61,966.89

Finding the Fourth Proportional to 121,212.72, 181,618.60 and 61,966.89

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Solution

The fourth proportional to 121,212.72, 181,618.60 and 61,966.89 is: 92,847.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.72 : 181,618.60 = 61,966.89 : x
  2. Step 2: Convert to fraction form
    121,212.72/181,618.60 = 61,966.89/x
  3. Step 3: Cross multiply
    121,212.72x = 181,618.60 × 61,966.89
  4. Step 4: Simplify right side
    121,212.72x = 11,254,339,808.15
  5. Step 5: Solve for x
    x = 11,254,339,808.15/121,212.72
  6. Step 6: Final answer
    x = 92,847.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.