Home / 142,301.97-196,353.05-84,964.50

Finding the Fourth Proportional to 142,301.97, 196,353.05 and 84,964.50

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Solution

The fourth proportional to 142,301.97, 196,353.05 and 84,964.50 is: 117,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,301.97 : 196,353.05 = 84,964.50 : x
  2. Step 2: Convert to fraction form
    142,301.97/196,353.05 = 84,964.50/x
  3. Step 3: Cross multiply
    142,301.97x = 196,353.05 × 84,964.50
  4. Step 4: Simplify right side
    142,301.97x = 16,683,038,291.90
  5. Step 5: Solve for x
    x = 16,683,038,291.90/142,301.97
  6. Step 6: Final answer
    x = 117,236.88

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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.