Home / 121,005.12-181,349.92-61,790.88

Finding the Fourth Proportional to 121,005.12, 181,349.92 and 61,790.88

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Solution

The fourth proportional to 121,005.12, 181,349.92 and 61,790.88 is: 92,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,005.12 : 181,349.92 = 61,790.88 : x
  2. Step 2: Convert to fraction form
    121,005.12/181,349.92 = 61,790.88/x
  3. Step 3: Cross multiply
    121,005.12x = 181,349.92 × 61,790.88
  4. Step 4: Simplify right side
    121,005.12x = 11,205,771,144.73
  5. Step 5: Solve for x
    x = 11,205,771,144.73/121,005.12
  6. Step 6: Final answer
    x = 92,605.76

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1.5x scale

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.