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Finding the Fourth Proportional to 100,928.88, 151,527.24 and 86,232.24

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Solution

The fourth proportional to 100,928.88, 151,527.24 and 86,232.24 is: 129,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,928.88 : 151,527.24 = 86,232.24 : x
  2. Step 2: Convert to fraction form
    100,928.88/151,527.24 = 86,232.24/x
  3. Step 3: Cross multiply
    100,928.88x = 151,527.24 × 86,232.24
  4. Step 4: Simplify right side
    100,928.88x = 13,066,533,326.22
  5. Step 5: Solve for x
    x = 13,066,533,326.22/100,928.88
  6. Step 6: Final answer
    x = 129,462.78

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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.