Home / 188,809.03-260,638.10-135,000.55

Finding the Fourth Proportional to 188,809.03, 260,638.10 and 135,000.55

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Solution

The fourth proportional to 188,809.03, 260,638.10 and 135,000.55 is: 186,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,809.03 : 260,638.10 = 135,000.55 : x
  2. Step 2: Convert to fraction form
    188,809.03/260,638.10 = 135,000.55/x
  3. Step 3: Cross multiply
    188,809.03x = 260,638.10 × 135,000.55
  4. Step 4: Simplify right side
    188,809.03x = 35,186,286,850.96
  5. Step 5: Solve for x
    x = 35,186,286,850.96/188,809.03
  6. Step 6: Final answer
    x = 186,359.13

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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.