Home / 100,664.32-151,018.42-30,549.12

Finding the Fourth Proportional to 100,664.32, 151,018.42 and 30,549.12

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Solution

The fourth proportional to 100,664.32, 151,018.42 and 30,549.12 is: 45,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,664.32 : 151,018.42 = 30,549.12 : x
  2. Step 2: Convert to fraction form
    100,664.32/151,018.42 = 30,549.12/x
  3. Step 3: Cross multiply
    100,664.32x = 151,018.42 × 30,549.12
  4. Step 4: Simplify right side
    100,664.32x = 4,613,479,834.79
  5. Step 5: Solve for x
    x = 4,613,479,834.79/100,664.32
  6. Step 6: Final answer
    x = 45,830.34

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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.