Home / 109,292.78-163,684.02-84,133.19

Finding the Fourth Proportional to 109,292.78, 163,684.02 and 84,133.19

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Solution

The fourth proportional to 109,292.78, 163,684.02 and 84,133.19 is: 126,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,292.78 : 163,684.02 = 84,133.19 : x
  2. Step 2: Convert to fraction form
    109,292.78/163,684.02 = 84,133.19/x
  3. Step 3: Cross multiply
    109,292.78x = 163,684.02 × 84,133.19
  4. Step 4: Simplify right side
    109,292.78x = 13,771,258,754.62
  5. Step 5: Solve for x
    x = 13,771,258,754.62/109,292.78
  6. Step 6: Final answer
    x = 126,003.37

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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.