Home / 127,935.80-191,532-74,464.56

Finding the Fourth Proportional to 127,935.80, 191,532 and 74,464.56

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Solution

The fourth proportional to 127,935.80, 191,532 and 74,464.56 is: 111,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,935.80 : 191,532 = 74,464.56 : x
  2. Step 2: Convert to fraction form
    127,935.80/191,532 = 74,464.56/x
  3. Step 3: Cross multiply
    127,935.80x = 191,532 × 74,464.56
  4. Step 4: Simplify right side
    127,935.80x = 14,262,346,105.92
  5. Step 5: Solve for x
    x = 14,262,346,105.92/127,935.80
  6. Step 6: Final answer
    x = 111,480.50

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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.