Home / 425,440.62-638,159.07-125,922.45

Finding the Fourth Proportional to 425,440.62, 638,159.07 and 125,922.45

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Solution

The fourth proportional to 425,440.62, 638,159.07 and 125,922.45 is: 188,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,440.62 : 638,159.07 = 125,922.45 : x
  2. Step 2: Convert to fraction form
    425,440.62/638,159.07 = 125,922.45/x
  3. Step 3: Cross multiply
    425,440.62x = 638,159.07 × 125,922.45
  4. Step 4: Simplify right side
    425,440.62x = 80,358,553,584.12
  5. Step 5: Solve for x
    x = 80,358,553,584.12/425,440.62
  6. Step 6: Final answer
    x = 188,883.12

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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.