Home / 437,756.20-656,653.98-134,128.12

Finding the Fourth Proportional to 437,756.20, 656,653.98 and 134,128.12

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Solution

The fourth proportional to 437,756.20, 656,653.98 and 134,128.12 is: 201,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,756.20 : 656,653.98 = 134,128.12 : x
  2. Step 2: Convert to fraction form
    437,756.20/656,653.98 = 134,128.12/x
  3. Step 3: Cross multiply
    437,756.20x = 656,653.98 × 134,128.12
  4. Step 4: Simplify right side
    437,756.20x = 88,075,759,874.01
  5. Step 5: Solve for x
    x = 88,075,759,874.01/437,756.20
  6. Step 6: Final answer
    x = 201,198.20

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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.