Home / 134,084.12-201,200.04-81,530.51

Finding the Fourth Proportional to 134,084.12, 201,200.04 and 81,530.51

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Solution

The fourth proportional to 134,084.12, 201,200.04 and 81,530.51 is: 122,340.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,084.12 : 201,200.04 = 81,530.51 : x
  2. Step 2: Convert to fraction form
    134,084.12/201,200.04 = 81,530.51/x
  3. Step 3: Cross multiply
    134,084.12x = 201,200.04 × 81,530.51
  4. Step 4: Simplify right side
    134,084.12x = 16,403,940,867.22
  5. Step 5: Solve for x
    x = 16,403,940,867.22/134,084.12
  6. Step 6: Final answer
    x = 122,340.67

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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.