Home / 100,425.16-150,641.66-30,304.48

Finding the Fourth Proportional to 100,425.16, 150,641.66 and 30,304.48

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Solution

The fourth proportional to 100,425.16, 150,641.66 and 30,304.48 is: 45,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,425.16 : 150,641.66 = 30,304.48 : x
  2. Step 2: Convert to fraction form
    100,425.16/150,641.66 = 30,304.48/x
  3. Step 3: Cross multiply
    100,425.16x = 150,641.66 × 30,304.48
  4. Step 4: Simplify right side
    100,425.16x = 4,565,117,172.64
  5. Step 5: Solve for x
    x = 4,565,117,172.64/100,425.16
  6. Step 6: Final answer
    x = 45,457.90

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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.