Home / 131,775.45-181,850.19-71,346.12

Finding the Fourth Proportional to 131,775.45, 181,850.19 and 71,346.12

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Solution

The fourth proportional to 131,775.45, 181,850.19 and 71,346.12 is: 98,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,775.45 : 181,850.19 = 71,346.12 : x
  2. Step 2: Convert to fraction form
    131,775.45/181,850.19 = 71,346.12/x
  3. Step 3: Cross multiply
    131,775.45x = 181,850.19 × 71,346.12
  4. Step 4: Simplify right side
    131,775.45x = 12,974,305,477.76
  5. Step 5: Solve for x
    x = 12,974,305,477.76/131,775.45
  6. Step 6: Final answer
    x = 98,457.68

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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.