Home / 142,816.10-197,078.63-82,383.17

Finding the Fourth Proportional to 142,816.10, 197,078.63 and 82,383.17

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Solution

The fourth proportional to 142,816.10, 197,078.63 and 82,383.17 is: 113,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,816.10 : 197,078.63 = 82,383.17 : x
  2. Step 2: Convert to fraction form
    142,816.10/197,078.63 = 82,383.17/x
  3. Step 3: Cross multiply
    142,816.10x = 197,078.63 × 82,383.17
  4. Step 4: Simplify right side
    142,816.10x = 16,235,960,881.35
  5. Step 5: Solve for x
    x = 16,235,960,881.35/142,816.10
  6. Step 6: Final answer
    x = 113,684.39

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1.5x scale

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.