Home / 100,429.28-150,668.24-30,304.32

Finding the Fourth Proportional to 100,429.28, 150,668.24 and 30,304.32

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Solution

The fourth proportional to 100,429.28, 150,668.24 and 30,304.32 is: 45,463.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,429.28 : 150,668.24 = 30,304.32 : x
  2. Step 2: Convert to fraction form
    100,429.28/150,668.24 = 30,304.32/x
  3. Step 3: Cross multiply
    100,429.28x = 150,668.24 × 30,304.32
  4. Step 4: Simplify right side
    100,429.28x = 4,565,898,558.80
  5. Step 5: Solve for x
    x = 4,565,898,558.80/100,429.28
  6. Step 6: Final answer
    x = 45,463.82

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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.