Home / 142,154.30-196,102.15-84,753.21

Finding the Fourth Proportional to 142,154.30, 196,102.15 and 84,753.21

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Solution

The fourth proportional to 142,154.30, 196,102.15 and 84,753.21 is: 116,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,154.30 : 196,102.15 = 84,753.21 : x
  2. Step 2: Convert to fraction form
    142,154.30/196,102.15 = 84,753.21/x
  3. Step 3: Cross multiply
    142,154.30x = 196,102.15 × 84,753.21
  4. Step 4: Simplify right side
    142,154.30x = 16,620,287,223.90
  5. Step 5: Solve for x
    x = 16,620,287,223.90/142,154.30
  6. Step 6: Final answer
    x = 116,917.23

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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.