Home / 155,349.56-214,295.82-107,630.84

Finding the Fourth Proportional to 155,349.56, 214,295.82 and 107,630.84

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Solution

The fourth proportional to 155,349.56, 214,295.82 and 107,630.84 is: 148,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,349.56 : 214,295.82 = 107,630.84 : x
  2. Step 2: Convert to fraction form
    155,349.56/214,295.82 = 107,630.84/x
  3. Step 3: Cross multiply
    155,349.56x = 214,295.82 × 107,630.84
  4. Step 4: Simplify right side
    155,349.56x = 23,064,839,115.09
  5. Step 5: Solve for x
    x = 23,064,839,115.09/155,349.56
  6. Step 6: Final answer
    x = 148,470.58

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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.