Home / 106,728-147,287.58-58,984.44

Finding the Fourth Proportional to 106,728, 147,287.58 and 58,984.44

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Solution

The fourth proportional to 106,728, 147,287.58 and 58,984.44 is: 81,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,728 : 147,287.58 = 58,984.44 : x
  2. Step 2: Convert to fraction form
    106,728/147,287.58 = 58,984.44/x
  3. Step 3: Cross multiply
    106,728x = 147,287.58 × 58,984.44
  4. Step 4: Simplify right side
    106,728x = 8,687,675,425.26
  5. Step 5: Solve for x
    x = 8,687,675,425.26/106,728
  6. Step 6: Final answer
    x = 81,400.15

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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.