Home / 134,138.88-201,186-40,622.40

Finding the Fourth Proportional to 134,138.88, 201,186 and 40,622.40

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Solution

The fourth proportional to 134,138.88, 201,186 and 40,622.40 is: 60,926.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,138.88 : 201,186 = 40,622.40 : x
  2. Step 2: Convert to fraction form
    134,138.88/201,186 = 40,622.40/x
  3. Step 3: Cross multiply
    134,138.88x = 201,186 × 40,622.40
  4. Step 4: Simplify right side
    134,138.88x = 8,172,658,166.40
  5. Step 5: Solve for x
    x = 8,172,658,166.40/134,138.88
  6. Step 6: Final answer
    x = 60,926.84

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1.5x scale

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.