Home / 131,087.08-180,974.82-86,504.68

Finding the Fourth Proportional to 131,087.08, 180,974.82 and 86,504.68

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Solution

The fourth proportional to 131,087.08, 180,974.82 and 86,504.68 is: 119,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,087.08 : 180,974.82 = 86,504.68 : x
  2. Step 2: Convert to fraction form
    131,087.08/180,974.82 = 86,504.68/x
  3. Step 3: Cross multiply
    131,087.08x = 180,974.82 × 86,504.68
  4. Step 4: Simplify right side
    131,087.08x = 15,655,168,892.16
  5. Step 5: Solve for x
    x = 15,655,168,892.16/131,087.08
  6. Step 6: Final answer
    x = 119,425.72

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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.