Home / 131,776.05-181,850.11-71,346.50

Finding the Fourth Proportional to 131,776.05, 181,850.11 and 71,346.50

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Solution

The fourth proportional to 131,776.05, 181,850.11 and 71,346.50 is: 98,457.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,776.05 : 181,850.11 = 71,346.50 : x
  2. Step 2: Convert to fraction form
    131,776.05/181,850.11 = 71,346.50/x
  3. Step 3: Cross multiply
    131,776.05x = 181,850.11 × 71,346.50
  4. Step 4: Simplify right side
    131,776.05x = 12,974,369,891.67
  5. Step 5: Solve for x
    x = 12,974,369,891.67/131,776.05
  6. Step 6: Final answer
    x = 98,457.72

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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.