Home / 142,957.08-197,289.60-82,538.76

Finding the Fourth Proportional to 142,957.08, 197,289.60 and 82,538.76

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Solution

The fourth proportional to 142,957.08, 197,289.60 and 82,538.76 is: 113,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,957.08 : 197,289.60 = 82,538.76 : x
  2. Step 2: Convert to fraction form
    142,957.08/197,289.60 = 82,538.76/x
  3. Step 3: Cross multiply
    142,957.08x = 197,289.60 × 82,538.76
  4. Step 4: Simplify right side
    142,957.08x = 16,284,038,944.90
  5. Step 5: Solve for x
    x = 16,284,038,944.90/142,957.08
  6. Step 6: Final answer
    x = 113,908.59

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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.