Home / 120,788.06-181,070.31-45,885.74

Finding the Fourth Proportional to 120,788.06, 181,070.31 and 45,885.74

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Solution

The fourth proportional to 120,788.06, 181,070.31 and 45,885.74 is: 68,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,788.06 : 181,070.31 = 45,885.74 : x
  2. Step 2: Convert to fraction form
    120,788.06/181,070.31 = 45,885.74/x
  3. Step 3: Cross multiply
    120,788.06x = 181,070.31 × 45,885.74
  4. Step 4: Simplify right side
    120,788.06x = 8,308,545,166.38
  5. Step 5: Solve for x
    x = 8,308,545,166.38/120,788.06
  6. Step 6: Final answer
    x = 68,786.15

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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.