Home / 142,988.52-197,341.16-82,573.84

Finding the Fourth Proportional to 142,988.52, 197,341.16 and 82,573.84

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Solution

The fourth proportional to 142,988.52, 197,341.16 and 82,573.84 is: 113,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,988.52 : 197,341.16 = 82,573.84 : x
  2. Step 2: Convert to fraction form
    142,988.52/197,341.16 = 82,573.84/x
  3. Step 3: Cross multiply
    142,988.52x = 197,341.16 × 82,573.84
  4. Step 4: Simplify right side
    142,988.52x = 16,295,217,371.25
  5. Step 5: Solve for x
    x = 16,295,217,371.25/142,988.52
  6. Step 6: Final answer
    x = 113,961.72

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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.