Home / 109,190.46-150,681.03-61,443.78

Finding the Fourth Proportional to 109,190.46, 150,681.03 and 61,443.78

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Solution

The fourth proportional to 109,190.46, 150,681.03 and 61,443.78 is: 84,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,190.46 : 150,681.03 = 61,443.78 : x
  2. Step 2: Convert to fraction form
    109,190.46/150,681.03 = 61,443.78/x
  3. Step 3: Cross multiply
    109,190.46x = 150,681.03 × 61,443.78
  4. Step 4: Simplify right side
    109,190.46x = 9,258,412,057.49
  5. Step 5: Solve for x
    x = 9,258,412,057.49/109,190.46
  6. Step 6: Final answer
    x = 84,791.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.